NEET Level Test (15-Jan-23) Part Syllabus

Botany - Section A

1.

Assertion(A):	In aerobic respiration presence of O₂ is necessary.
Reason(R):	O₂ in aerobic respiration plays only one role i.e. terminal acceptor of the electron.

In the following questions, a statement of assertion (A) is followed by a statement of the reason (R).

1.	Both (A) & (R) are true and (R) is the correct explanation of (A)
2.	Both (A) & (R) are true but (R) is not the correct explanation of (A).
3.	(A) is a true statement but (R) is false.
4.	Both (A) and (R) are false statements.

2.

During glycolysis:

1.	ATP molecules are synthesized between fructose-6-phosphate and fructose 1, 6-diphosphate
2.	Water molecules are released between PEP and pyruvate
3.	$N A D^{+}$ is oxidized between PGAL and BPGA
4.	ATP molecules are synthesized in the conversion of BPGA to PGA

3. Read the following statements about root pressure and select the correct option.
a. Its effect is observable when evaporation is low.
b. It can provide a modest push in the overall process of water transport.
c. It is a positive pressure.
d. It re-establish the continuous chains of a water molecule in the xylem.
1. Only a and c are correct
2. Only d is incorrect
3. Only a and b are correct
4. All a, b, c, and d are correct

4. Observe the photoperiodic response depicted below and find out which one (A, B, or C) is a short-day plant (SDP), long-day plant (LDP), and day-neutral plant (DNP):

Options	A	B	C
1.	SDP	DNP	LDP
2.	SDP	LDP	SDP
3.	DNP	LDP	SDP
4.	SDP	LDP	DNP

5. Match the columns:

	Column -I		Column-II
A.	Substitute of vernalisation	(i)	High temperature
B.	Critical photoperiod	(ii)	ABA
C.	Stress hormone	(iii)	Gibberellin
D.	Devernalisation	(iv)	SDP and LDP

1.	A = (i) , B =(ii) , C= (iv) , D=(iii)
2.	A = (i) , B =(iii) , C= (ii) , D=(iv)
3.	A = (iii) , B =(iv) , C= (ii) , D=(i)
4.	A = (ii) , B =(iv) , C= (i) , D=(iii)

6.

In the figure given below the correct match is:

1. A-Ethanol, B-Lactic acid, C-Dihydroxyacetone phosphate
2. A-Lactic acid, B-Ethanol, C-Oxaloacetic acid
3. A-Lactic acid, B-Ethanol, C-3-Phosphoglyceric acid
4. A-Ethanol, B-Lactic acid, C-3-phosphoglyceric acid

7.

During citrate synthesis in the Krebs cycle:

1.	A molecule of CoA is used.
2.	There is a condensation of the acetyl group with oxalosuccinic acid.
3.	There is a condensation of the acetyl group with oxaloacetic acid and water.
4.	Succinyl CoA is oxidised in presence of citrate synthetase.

8.

The growth of a root elongating at a constant rate will be represented by:

1. A only
2. B only
3. Both A and B
4. Neither A nor B

9. The phenomenon that prevents precocious reproductive development late in the growing season of a plant is:
A. Vernalisation
B. Thermoregulators
C. Photoreceptors
D. Seed dormancy
E. Plant inhibitors
Choose the correct answer from the options given below:
1. C only
2. A only
3. D only
4. E & B only

10.

Suppose there are three cells A, B, and C as shown in the figure. What is the direction of movement of water?

1. $A \to B a n d C$
2. $A \to B a n d B \to C$
3. $C \to A & B; A \to B$
4. $C \to B & A \to C$

11.

In which step of glycolysis does water form?

1.	Fructose 1,6 –bisphosphate	→	Glyceraldehyde-3-phosphate
2.	1,3 bisphosphoglyceric acid	→	3-phosphoglyceric acid
3.	2-phosphoglycerate	→	Phosphoenolpyruvate
4.	Phosphoenolpyrespruvate	→	Pyruvic acid

12. Read the following statements with respect to ethylene -the gaseous plant hormone:

(i)	Causes horizontal growth of seedlings.
(ii)	It is highly effective in causing fruit ripening.
(iii)	Is responsible for respiratory climatic in fruits which is the enhanced respiration rate during fruit ripening.
(iv)	Ethylene breaks seed and bud dormancy, initiates germination in peanut seeds, and causes the sprouting of potatoes.
(v)	It is used to initiate flowering and for synchronising fruit set in pineapples.

How many of the above statements are correct?
1. Four
2. Three
3. Two
4. Five

13.

Which one of the following statement is correct?

1.	Under certain conditions organic acids can be used as a respiratory substrate.
2.	Carbon skeleton produced during respiration is used as a precursor for the biosynthesis of other molecules.
3.	During cellular respiration, energy is released in a series of slow stepwise reactions.
4.	All of the above statements are correct.

14.

Which one of the following concerns photophosphorylation:

1.	$\mathrm{ADP}+\mathrm{AMP} \xrightarrow{\text { Lightenergy }} \text { ATP }$
2.	$\mathrm{ADP}+\text { Inorganic } \mathrm{PO}_4 \xrightarrow{\text { Lightenergy }} \text { ATP }$
3.	$\text { ADP }+ \text { Inorganic } \mathrm{PO}_4 \rightarrow \text { ATP }$
4.	$\mathrm{AMP}+\text { Inorganic } \mathrm{PO}_4 \xrightarrow{\text { Lightenergy }} \text { ATP }$

15.

Which of the following is not a feature of the active transport of solutes in plants?
1. Occurs against the concentration gradient
2. Non-selective
3. Occurs through membranes
4. Requires ATP

16.

Statement I:	In fermentation, there is a net gain of 12 molecules of ATP for each molecule of glucose degraded to pyruvic acid whereas only 2 molecules of ATP are generated under aerobic conditions.
Statement II:	Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to CO₂ and H₂O.

In light of the above statements, choose the most appropriate answer from the options given below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.

17.

Which of the following statements regarding mitochondria is incorrect?

1.	Mitochondrial matrix contains single circular DNA molecule and ribosomes.
2.	Outer membrane is permeable to monomers of carbohydrates, fats, and proteins.
3.	Enzymes of electron transport are embedded in the outer membrane.
4.	Inner membrane is convoluted with infoldings.

18.

Match the following columns.

Column I

Column II

A. Molecular oxygen

B. Electron acceptor

C. Pyruvate dehydrogenase

D. Decarboxylation

1. $α$ - ketoglutaric acid

2. Hydrogen acceptor

3. Cytochrome-c

4. Acetyl Co - A

Codes

Options:	A	B	C	D
1.	2	3	4	1
2.	3	4	2	1
3.	2	1	3	4
4.	4	3	1	2

19.

Which of the following statements is incorrect?

1.	ATP is synthesized through complex V.
2.	Oxidation-reduction reactions produce a proton gradient in respiration.
3.	During aerobic respiration, the role of oxygen is limited to the terminal stage.
4.	In ETC (Electron Transport Chain), one molecule of NADH+H⁺ gives rise to 2 ATP molecules, and one FADH₂ gives rise to 3 ATP molecules.

20.

Assertion(A):	2,4-D is widely used as an herbicide.
Reason(R):	It is used to kill mature monocotyledonous plants.

1.	Both (A) & (R) are true and (R) is the correct explanation of (A)
2.	Both (A) & (R) are true but (R) is not the correct explanation of (A)
3.	(A) is a true statement but (R) is false.
4.	Both (A) and (R) are false statements.

21.

Find the wrong statement about the Electron Transport system:

1.	Release and utilize the energy stored in NADH and FADH₂
2.	Oxidizes NADH and reduces FADH₂
3.	Electrons are passed on to oxygen resulting in the formation of water
4.	The metabolic pathway through which electron passes from one carrier to another

22. Which of these statements is incorrect?

1.	Enzymes of the TCA cycle are present in the mitochondrial matrix.
2.	Glycolysis occurs in the cytosol.
3.	Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
4.	Oxidative phosphorylation takes place in the outer mitochondrial membrane.

23.

Select the incorrect statement regarding the physiological effects of auxins.

1.	Auxin promotes growth in roots
2.	Auxin rapidly increases the extensibility of cell wall
3.	Auxin has no effect on vascular differentiation
4.	Phototropism is mediated by the lateral redistribution of auxin

24. Observe the sigmoid curve given below and identify the phases A, B, and C:

1.	A = Initial slow growth, B = Rapid growth, C = Phase of growth during limited nutrient supply
2.	A = Rapid growth, B = Initial slow growth, C = Phase of growth during limited nutrient supply
3.	A = Lag phase, B = Stationary phase, C = Exponential phase
4.	A = Exponential phase, B = Stationary phase, C = Lag phase

25.

How many statements are correct with respect to ETS?
1. ETS is helpful in the restoration of NAD $^{+} & F A D^{+}$
2. $O_{2}$ is terminal e $^{‐}$ acceptor in electron transport system
3. Ubiquinone & FMN are hydrogen carriers and helpful in the movement of H $^{+}$ from matrix to space.
4. Complex lV is also known as cytochrome C oxidase.
5. Movement of e $^{‐}$ in ETS is due to variable valency of metal ions present in carrier complexes.
1. 3
2. 4
3. 5
4. 2

26.

Read the following statements (A-D):

A.	Helps in the closing of stomata.
B.	Induces seed dormancy.
C.	Inhibits cambial activity.
D.	Seedling develops epicotyl hook.

Select the correct option with respect to the physiological role of ABA (abscisic acid) by selecting True (T) and False (F).

	A	B	C	D
1.	F	T	T	T
2.	T	F	F	F
3.	T	T	T	F
4.	F	T	T	F

27.

GTP is formed at which step of the Krebs cycle during aerobic respiration?
1. Conversion of isocitric acid into oxalosuccinic acid.
2. Oxidation of $α$ -Ketoglutaric acid into succinyl co-A.
3. Conversion of succinyl Co-A into succinic acid.
4. Oxidation of malic acid into oxaloacetic acid.

28.

What is correct about the movement of substances across the membrane in facilitated diffusion?
1. It is an active transport.
2. It causes the transport of molecules from low concentration to high concentration.
3. It is insensitive to inhibitors.
4. It is a very specific transport.

29.

Identify A, B, C, and D in the following diagram:

1.	A - Inner mitochondrial membrane; B - $F_{0}$ ; C - $F_{1}$ ; D - Matrix
2.	A- Inner mitochondrial membrane; B - $F_{0}$ ; C - Matrix; D - $F_{1}$
3.	A - Matrix; B - $F_{1}$ ; C - Inner mitochondrial membrane; D - $F_{0}$
4.	A - Cytoplasm; B - $F_{0}$ ; C - Matrix; D - $F_{1}$

30.

Decapitation is widely applied in tea plantations because it:

1.	Inhibits lateral bud formation nearby the tip
2.	Induces lateral bud formation nearby the tip
3.	Induces lateral bud growth
4.	More than one option is correct

31.

Assertion (A):	In coriander, the leaves of juvenile plants are different in shape from those in mature plants.
Reason (R):	It shows environmental plasticity.

Choices for Assertions and reasons:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3.	(A) is true, but (R) is false.
4.	Both (A) and (R) are false.

32.

The common feature of aerobic respiration and the alcoholic fermentation process is:
1. ATP and metabolic $H_{2} O$ as end products
2. NADH + $H^{+}$ oxidation
3. Oxygen use
4. Complete breakdown of glucose to $C O_{2}$ & $H_{2} O$

33.

Assertion (A):	Development is the sum total of growth and differentiation.
Reason (R):	Development is controlled by extrinsic factors as well as intrinsic factors.

Choices for Assertions and reasons:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3.	(A) is true, but (R) is false.
4.	Both (A) and (R) are false.

34. Respiratory quotient is 1 when:

1.	Carbohydrates are used as respiratory substrates
2.	Fats are used as respiratory substrates
3.	Proteins are used as respiratory substrates
4.	Amino acids are used as respiratory substrates

35.

The effects of abscisic acid in plants include:

I.	It induces stomatal closure, decreasing transpiration to prevent water loss.
II.	Stimulates fruit ripening.
III.	Responsible for seed dormancy by inhibiting cell growth—inhibits seed germination.
IV.	Stimulates the synthesis of Kinetin nucleotide.
V.	Regulates enzymes needed for photosynthesis.

1. I, II, III, IV, V
2. I, III, V
3. I, II, III, IV
4. II, III, IV, V

Botany - Section B

36.

Which of the following is an incorrect statement?

1. An analysis of xylem exudate suggests that some of the nitrogen travels as inorganic ions and much of it is carried in the organic form as amino acids.
2. Small amount of P and S is also carried as inorganic compounds in xylem exudate.
3. There is exchange of material between the xylem and phloem.
4. Xylem transports inorganic nutrients while phloem transports organic materials, this observation was proved wrong by the analysis of xylem exudate.

37.

Which of the following facilitates the opening of the stomatal aperture?
1. Contraction of the outer wall of guard cells
2. Decrease in turgidity in guard cells
3. Radial orientation of cellulose microfibrils in the cell wall of guard cells
4. Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells

38.

Match column l and column ll.

Column I		Column II
(a)	$F e^{3 +}$	(i)	catalase
(b)	$M g^{2 +}$	(ii)	Chlorophyll
(c)	$S O_{4}^{2 -}$	(iii)	Phosphorylation
(d)	$H_{2} P O_{4}^{-}$	(iv)	Coenzyme A

	(a)	(b)	(c)	(d)
1.	(i)	(ii)	(iv)	(iii)
2.	(ii)	(iii)	(iv)	(i)
3.	(iv)	(iii)	(ii)	(i)
4.	(iv)	(i)	(ii)	(iii)

39.

In muscles, during exercise, when oxygen is inadequate for cellular respiration:

1.	Pyruvic acid is oxidised to lactic acid
2.	45% of the energy in glucose is released in the form of ATP
3.	NADH + $H^{+}$ is oxidised to NA $D^{+}$
4.	Pyruvic acid is reduced to ethanol and $C O_{2}$

40. Which of the following is incorrect?

1.	Conversion of shoot apical meristem into cortex is a case of differentiation
2.	The non-living differentiated cells can regain the capacity of division which is called dedifferentiation
3.	The formation of interfascicular cambium and cork cambium can occur from the fully differentiated parenchyma
4.	Secondary xylem and phellem are the products of dedifferentiation

41.

In which of the following locations of the plant cell, energy currency is formed?
(a) Nucleus
(b) Chloroplast
(c) Cytosol
(d) Mitochondrion
The correct one(s) is/are:

1.	All (a), (b), (c) & (d)	2.	(b), (c) & (d) only
3.	(d) only	4.	(b) & (d) only

42.

The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of:

1.	1 molecule of the 3-C compound
2.	1 molecule of the 6-C compound
3.	1 molecule of a 4-C compound and 1 molecule of the 2-C compound
4.	2 molecules of the 3-C compound

43.

Crops such as tomatoes and bell pepper, allowed to grow in a carbon dioxide rich environment, show higher yields because:

1.	They show an increased rate of photosynthesis at higher carbon dioxide concentrations.
2.	They can respond to high carbon dioxide conditions even in low light conditions.
3.	They show C₄ pathway for carbon fixation at high carbon dioxide is the limiting factor in such plants.
4.	Only carbon dioxide is the limiting factor in such plants.

44. Which statement describes the functioning of photosystem II?

1.	Light energy excites electrons in the thylakoid membrane electron transport chain.
2.	Photons are passed along to a reaction-center chlorophyll.
3.	The P680 chlorophyll donates a pair of protons to NADP⁺, which is thus converted to NADPH.
4.	The electron vacancies in P680+ are filled by electrons derived from water.

45. Select all routes possible for the transport of water and minerals from root hair to the xylem:
A. Transmembrane route
B. Symplastic route
C. Apoplastic route
D. Stomatal route
E. Endodermis route
Choose the correct answer from the options given below:
1. A, B, C and E only
2. B, C, D and E only
3. A, B, C and D only
4. A, B, D and E only

46.

The photochemical phase of photosynthesis includes:

1.	Light absorption & formation of high-energy chemical intermediates.
2.	Light absorption, water splitting, and synthesis of carbohydrates.
3.	Light absorption, oxygen release, and formation of high-energy chemical intermediates.
4.	Light absorption, water splitting, trapping of ${CO}_{2,}$ and formation of high-energy chemical intermediates.

47.

Select the incorrectly matched pair with respect to $N_{2}$ fixation:
1. Reductive amination - Transaminase
2. Nitrate reductase - Molybdoflavoprotein
3. Source of electrons - Ferredoxin
for nitrite reduction
4. Fixation of one $N_{2}$ - Requires 16 ATP

48.

A:	Glycolysis is the first common step of both aerobic as well as anaerobic respiration.
R:	1 molecule of hexose sugar is converted into molecules of pyruvic acid in the absence or presence of oxygen in glycolysis.

In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R).

1.	If both (A) & (R) are true and the (R) is the correct explanation of the (A), then mark (1).
2.	If both (A) & (R) are true but the (R) is not the correct explanation of the (A), then mark (2).
3.	If (A) is a true statement but the (R) is false, then mark (3).
4.	If both (A) and (R) are false statements, then mark (4).

49. Which of the following conclusions is supported by the research of both Went and Charles Darwin on shoot responses to light?

1.	When shoots are exposed to light, a chemical substance migrates towards the light.
2.	Agar contains a chemical substance that mimics a plant hormone.
3.	A chemical substance involved in shoot bending is produced in the shoot tips.
4.	Once the shoot tip is cut, normal growth cannot be induced.

50.

Minerals known to be required in large amounts for plant growth include:
1. Magnesium, sulphur, iron, zinc
2. Phosphorus, potassium, sulphur, calcium
3. Calcium, magnesium, manganese, copper
4. Potassium, phosphorus, selenium, boron

Zoology - Section A

51. The pre-excitation potential difference between the outside and inside of a neuron is called:
1. Reaction potential
2. Resting potential
3. Spike potential
4. Action potential

52. Match column-I with column-II and choose the correct option:

	Column-I		Column-II
a.	Glucagon	(i)	Steroid
b.	Epinephrine	(ii)	Peptide
c.	Thyroxine	(iii)	Iodothyronine
d.	Estradiol	(iv)	Amino-acid derivative

1. a(ii), b(iii), c(i), d(iv)
2. a(ii), b(iv), c(i), d(iii)
3. a(iv), b(ii), c(iii), d(i)
4. a(ii), b(iv), c(iii), d(i)

53. What are the dimensions of each of the chief excretory organs in a human body which forms urine?
1. 10-12 cm in width, 5-7 cm in length, 2-3 cm in thickness
2. 13-15 cm in length, 2-3 cm in width, 5-7 cm in thickness
3. 10-12 cm in length, 5-7 cm in width, 2-3 cm in thickness
4. 10-12 cm in length, 2-3 cm in width, 5-7 cm in thickness

54.

Match each item in Column I with one in Column II and choose your answer from the codes given below:

Column I		Column II
(a)	Estrogen	(i)	Supports pregnancy
(b)	Progesterone	(ii)	Secondary sexual characters in females
(c)	FSH	(iii)	Regulates spermatogenesis
(d)	LH	(iv)	Ovulation

	(a)	(b)	(c)	(d)
1.	(ii)	(i)	(iii)	(iv)
2.	(i)	(iii)	(ii)	(iv)
3.	(i)	(ii)	(iv)	(iii)
4.	(i)	(ii)	(iii)	(iv)

55.

The structure marked as X in the following diagram showing a sagittal section of the human brain would be:

1. Corpora quadrigemina
2. Limbic system
3. Corpus callosum
4. Hippocampal gyrus

56.

Human body temperature is regulated by the centre located in:
1. Cerebrum
2. Cerebellum
3. Medulla
4. Hypothalamus

57. Patients suffering from Diabetes mellitus manage their blood sugar levels:
1. By taking insulin injections at regular time intervals
2. By taking insulin orally once every day
3. By injecting proinsulin at regular time intervals
4. By taking enzyme replacement therapy

58. Select the incorrect match:
1. Myasthenia gravis – Autoimmune disorder
2. Diabetes insipidus – Deficiency of vasopressin
3. Knee-jerk reflex – Acquired reflex
4. Osteoporosis – Decreased levels of oestrogen

59.

The muscle can directly use which of the following as a source of energy?
1. Creatine phosphate
2. Glucose
3. ATP
4. Fatty acids

60. Endocrine system comprises:
1. Only endocrine glands
2. Hormone-producing diffused tissues only
3. Endocrine as well as exocrine glands
4. All hormone-producing organs, tissues, and cells

61.

A motor unit consists of:
1. A motor neuron and all the muscle fibers innervated by it
2. All the motor neurons innervating one muscle fiber
3. All the muscle fibers in a fasciculus
4. All the muscle fibers in a skeletal muscle

62. In mammals, which of the following mechanism helps to produce concentrated urine?

1.	Exchange of NaCl between the ascending limb of Henle's loop and the descending limb of the vasa recta.
2.	NaCl returns to the interstitium by the ascending portion vasa recta.
3.	Small amount of urea enters the ascending limb of Henle's loop and transport back to the interstitium.
4.	All of the above.

63.

A canal called the cerebral aqueduct passes through the:
1. Cerebral hemispheres
2. Diencephalon
3. Mid brain
4. Hind brain

64.

A hormone that is antagonist to the parathyroid hormone is secreted from :
1. Thyroid
2. Adrenal cortex
3. Hypothalamus
4. Parathyroid itself

65. Inner parts of cerebral hemispheres and a group of associated deep structures like the amygdala, etc., form a complex structure which is concerned with:
(a) Olfaction
(b) Control of respiration
(c) Autonomic responses
(d) Expression of fear and rage
(e) Regulation of sexual behavior
(f) Gastric secretions
Select the correct option.
1. (a), (c), (d) and (e)
2. (d) and (e) only
3. (a), (b), (c) and (f)
4. (b), (c), (d) and (f)

66. Reflex action has all of the following features, except:

1.	Receiving of signal from a sensory organ
2.	Transmission of impulsive into the central nervous system through effector organ
3.	Carrying of signal from the central nervous system to the effector
4.	Response to an involuntary peripheral nervous stimulation

67. If Henle's loops are absent in mammalian nephrons, which one of the following will occur?
1. More dilute urine
2. No urine formation
3. Hardly any change in the quality and quantity of urine
4. More concentrated urine

68.

In the given diagram of the human skull, the bones represented by the letters A, B, and C are respectively:

1. Sphenoid, Ethmoid and Lacrimal
2. Ethmoid, Sphenoid and Lacrimal
3. Sphenoid, Lacrimal and Ethmoid
4. Ethmoid, Lacrimal and Sphenoid

69. Choose a set of animals from the following, such that, one is ammonotelic, one is ureotelic and one is uricotelic.
1. Land snail, cockroach, bony fish
2. Aquatic insects, terrestrial amphibians, marine fish
3. Reptile, mammal, aquatic amphibian
4. Bird, bony fish, aquatic insect

70. The pineal gland is located on the dorsal side of the forebrain. It secretes a hormone that plays a role in the regulation of:
(a) Metabolism
(b) Menstrual cycle
(c) Pigmentation
(d) Swallowing
(e) Hunger
Choose the correct option.

1.	a, b, and c	2.	b, c, and e
3.	a, b, and d	4.	c, d, and e

71. Which one of the following photoreceptors cells in the retina are more sensitive to light?
1. Rods, as they are more at fovea centralis
2. Rods, as they provide scotopic vision
3. Cones, as they are more at fovea centralis
4. Cones, as they provide photopic vision

72.

In the human eye, there are three types of cones – red, blue, and green. When these cones are stimulated equally, a sensation for which of the following colors would be produced?
1. White
2. Black
3. Orange
4. Yellow

73.

Low intelligence quotient abnormal skin and deafmutism are related to:
1. Low secretion of growth hormone
2. Hypothyroidism
3. Hyperparathyroidism
4. Hyposecretion of adrenal cortex hormone

74.

Glucocorticoids do not:
1. Stimulate gluconeogenesis
2. Cause lipolysis
3. Cause proteolysis
4. Stimulate cellular uptake and utilization of amino acids

75.

The amino acid derivative among the following hormone is:-
1. Insulin
2. Epinephrine
3. Estradiol
4. Testosterone

76. How many of the given statements are correct?

a.	Sarcoplasmic reticulum of the muscle fibres is the storehouse of calcium ions.
b.	The type of muscles present in our thigh are striated and voluntary.
c.	The H-zone in the skeletal muscle fibre is due to the central gap between myosin filaments in the A-band.
d.	Production of body heat and storage of minerals are the functions of the skeletal system.

Select the correct option.
1. One
2. Three
3. Two
4. Four

77.

Mark the correct statement:

1.	Electrical synapses are more common in our neural system than chemical synapses.
2.	The new potential in the post-synaptic neurons may be either excitatory or inhibitory.
3.	Hypothalamus is the major coordination centre for sensory and motor signaling.
4.	The tracts of nerve fibres that connect two cerebral hemispheres are called corpora bigemina.

78.

Scapula is a large triangular flat bone situated in the dorsal part of the thorax between:
1. the second and fifth ribs
2. the second and seventh ribs
3. the third and sixth ribs
4. the third and eighth ribs

79.

The normal value of GFR is approximately:
1. 650 ml/min
2. 180 ml/min
3. 180 ml/day
4.125 ml/min

80.

The sensory neuron enters the spinal cord through:

1.	The dorsal root of the spinal nerve
2.	The ventral root of the spinal nerve
3.	Either dorsal or ventral root depending on the point of origin
4.	Both dorsal and ventral roots of the spinal nerves

81. How many of the given receptors in the box are helpful in detecting chemicals?
Olfactory receptors, Gustatory receptors, Photoreceptors, Mechanoreceptors
1. One
2. Two
3. Three
4. Four

82.

A person passes a lot of dilute urine and drinks a lot of water but does not have glycosuria. He is most likely suffering from :
1. Type 1 diabetes mellitus
2. Type 2 diabetes mellitus
3. Pituitary diabetes
4. Diabetes insipidus

83.

Which area actually secretes renin into the blood?

1. macula densa
2. juxtaglomerular apparatus
3. juxtaglomerular cells
4. cortical nephron

84. Which of these happen(s) in muscle contraction?

A.	Increase in Ca⁺⁺ concentration level leads to the binding of calcium with a subunit of troponin on actin filaments. and thereby removes the masking of active sites for myosin.
B.	During the shortening of the muscle, A-bands get reduced, whereas, the I-bands retain the length.
C.	A muscle fibre is a syncytium.
D.	Isotropic band of a myofibril consists of myosin.

Choose the correct answer from the options given below:
1. A and B only
2. A and C only
3. A, B and C only
4. D only

85.

Juxtaglomerular apparatus is a special sensitive region formed by cellular modifications in the:
1. DCT and Efferent arteriole at the point of their contact
2. DCT and the Afferent arteriole at the point of their contact
3. PCT and Afferent arteriole at the point of their contact
4. PCT and Efferent arteriole at the point of their contact

Zoology - Section B

86.

Consider the following statements:

I:	The resting axonal membrane is nearly impermeable to sodium ions.
II:	Depolarization of the axonal membrane is due to the influx of sodium ions.
III:	The size of the action potential, if produced, does not depend on the strength of the stimulus.

Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III

87.

The brain stem does not include :
1. Mid-brain
2. Medulla oblongata
3. Pons Varolii
4. Cerebellum

88.

Adenohypophysis is an endocrine gland that secretes all of the following except:

1.	corticotropin	2.	luteinizing hormone
3.	somatostatin	4.	somatotropin

89.

Extracellular receptors must be required for the action of:
I. Oxytocin
II. Thyroxine
III. Epinephrine
IV. Glucagon
1. I, II, III & IV
2. I, IV only
3. I, III, IV
4. III & IV only

90. Read the following statements.

Statement A:	Excitable cells called neuroglial cells make up more than one-half the volume of neural tissue in our body.
Statement B:	The greatest control over the body’s responsiveness to changing conditions is exerted by neural tissue.

1. A and B both are incorrect
2. Only statement A is incorrect
3. Only statement B is incorrect
4. A and B both are correct

91.

In cochlea, the auditory receptors are:
1. Organ of Corti
2. Ampulla
3. Macula
4. Hair cells

92. Select the correct statement from the following:

1.	Kidneys are reddish brown, round-shaped structures situated between the levels of the last thoracic and third lumbar vertebra.
2.	Kidneys are close to the dorsal inner wall of the abdominal cavity.
3.	Each kidney of adult human measures 0.5 - 0.7 m in width, 0.2 – 0.3 m in thickness with an average weight of 120 – 150 g.
4.	Towards the centre of the inner convex surface of the kidney is a notch called the hilum through which the ureter, blood vessels, and nerves pass.

93.

During the concentration of urine by the human kidneys, NaCl is returned to the medullary interstitium by the:
1. Descending limb of the loop of Henle
2. Ascending limb of the loop of Henle
3. Descending limb of the vasa recta
4. Ascending limb of the vasa recta

94.

Which hormone stimulates exocrine pancreas to secrete water and bicarbonate ions?
1. Gastrin
2. Cholecystokinin
3. Secretin
4. Gastric inhibitory peptide

95. Select unpaired bones among the following:
(a) Occipital
(b) Parietal
(c) Ethmoid
(d) Sphenoid
(e) Maxilla
1. a, b and c
2. b, c and d
3. a, c and e
4. a, c and d

96.

The globular head of the myosin filament has active site/s for binding to:
I. ATP
II. the binding site for actin filament
III. Calcium
1. Only I
2. Only I and II
3. Only II and III
4. I, II, and III

97.

Which statement about the glomerular filtration rate (GFR) is false?

1.	The GFR averages approximately 180 L per day.
2.	The GFR will increase during fight-or-flight situations due to the vasodilation of afferent arterioles.
3.	A decrease in GFR results in a decrease in the total urine output.
4.	Renal autoregulation maintains the GFR at a relatively constant rate despite fluctuations in the mean arterial blood pressure.

98.

Cardiac muscles can be best defined as:

1.	Many cardiac muscle cells assemble in a branching pattern.
2.	Single cardiac muscle fibre enclosed by connective tissue layer.
3.	Group of multinucleated muscle fibres enclosed by connective tissue layer.
4.	Group of unstriated muscle fibres enclosed by endocardium.

99.

What is correct for the hormone whose mechanism of action is shown in the diagram?

1.	This hormone will most likely be synthesized by the neural cells of the hypothalamus
2.	This hormone cannot be thyroxin or triiodothyronine
3.	This hormone can be a derivative of cholesterol
4.	This hormone will have an almost instantaneous onset of action

100.

Consider the following statements:

I.	Myasthenia gravis is an autoimmune disorder affecting the neuromuscular junction
II.	Muscular dystrophy is a progressive degeneration of skeletal muscles mostly due to a genetic disorder
III.	Tetany is rapid spasms in muscles due to high Ca⁺⁺ in body fluid.

Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III

Chemistry - Section A

101.

Thermal power plants can lead to-
1. Eutrophication
2. Acid rain
3. Blue baby syndrome
4. Ozone layer depletion

102. When borax is red-heated then a transparent glassy solid is formed. The composition of this glassy solid is:
1. B₂O₃
2. NaBO₂ + B₂O₃
3. Na₂B₄O₇
4. NaBO₂

103.

Dihydrogen of high purity (> 99.95%) is obtained through

1.	The electrolysis of warm Ba(OH)₂ solution using Ni electrodes.
2.	The reaction of Zn with dilute HCl.
3.	The electrolysis of brine solution.
4.	The electrolysis of acidified water using Pt electrodes.

104.

Choose the correct set of elements X, Y, and Z, which belong to groups 13, 14, and 15, respectively, from the options below.

1. X = Th, Y = Pb, Z= Bi
2. X = In, Y = Sn, Z= At
3. X = Th, Y = Sn, Z= Sb
4. X = Tl, Y = Pb, Z= Bi

105. Amphoteric oxide, from the following oxides, is:
1. $CO_2 $
2. $SiO_2 $
3. $GeO_2 $
4. $PbO_2 $

106.

Among the following statements about water, the FALSE statement is-

1.	Water is oxidized to oxygen during photosynthesis
2.	Water can act both as an acid and as a base
3.	There is extensive intramolecular hydrogen bonding in the condensed phase
4.	Ice formed by heavy water sinks in normal water

107. Photochemical smog is a mixture of:
1. NO₂ + O₃ + PAN
2. H₂O + O₃ + CH₄
3. NO + NO₂
4. SO₂ + SO₃ + NO₂

108. The correct option for the structures of acrolein and peroxyacetylnitrate are respectively:
1. $CH_2 = CHCHO $ and

2. $CH_2 = CHCHO $ and

3. $CH_3CH_2CHO~~and ~~CH_3COONO_2 $
4. $CH_3CH_2 CHO $ and

109.

Statement-I:	Hydrogenation of vegetable oils using nickel as a catalyst gives Vanaspati ghee.
Statement-II:	Hydroformylation of ethene gives propanal.

In light of the above statements, choose the correct option among the following.
1. Both statement-I and statement II are true
2. Both statement-I and statement II are false
3. Statement-I is true but statement II is false
4. Statement-I is false but statement II is true

110.

Match the species given in Column I with the properties given in Column II.

Column I	Column II
A. Diborane	(i). Used as a flux for soldering metals
B. Gallium	(ii). Banana bonds
C. Borax	(iii). Low melting, high boiling, useful for measuring high temperatures
D. Aluminosilicate	(iv). Used as a catalyst in petrochemical industries

The correct match is-
1. A-(ii), B-(i), C-(iii), D-(iv)
2. A-(ii), B-(i), C-(iv), D-(iii)
3. A-(ii), B-(iii), C-(i), D-(iv)
4. A-(ii), B-(iii), C-(iv), D-(i)

111.

Which of the following is incorrect?
1. Slaked lime → Ca(OH)₂
2. Bleaching powder → Ca(OCl)₂
3. Plaster of Paris → CaSO₄· ½ H₂O
4. Quick lime $\to$ Ca(OH)₂

112.

Green chemistry deals with the:
1. Production of green vegetables
2. Reduction in the production of pollutants
3. Study of the ozone hole
4. Waste management

113. The pH of the rainwater is 5.6 due to the formation of:
1. $H_2CO_3 $
2. $H_2SO_4 $
3. $H_2SO_3 $
4. $HNO_3 $

114.

Among the following, the correct statement is-

1.	Beryllium exhibits a coordination number of six.
2.	Chlorides of both beryllium and aluminum have bridged chloride structures in solid phase.
3.	B₂H₆.2NH₃ is known as 'inorganic benzene'.
4.	Boric acid is a protonic acid.

115.

Both lithium and magnesium display several similar properties due to the diagonal relationship. However, the one which is incorrect is:

1.	Both form nitrides
2.	Nitrates of both Li and Mg yield NO₂ and O₂ on heating
3.	Both form basic carbonates
4.	Both form soluble bicarbonates

116. The hardness of water cannot be removed by
1. Treating with washing soda
2. Boiling
3. Adding permutit
4. Adding chlorine

117.

Sodium metal dissolves in liquid ammonia and forms a deep blue solution. The colour is due to the absorption of light by:
1. Sodium ions
2. Ammoniated electrons
3. Free electrons
4. Ammoniated sodium ions

118. Lithium reacts with element 'X' to make an alloy (white metal), used in bearings for motor engines. 'X' is-
1. Al
2. Mg
3. Pb
4. Cr

119.

A hydrated solid X on heating initially gives a monohydrated compound Y. Y upon heating above 373 K leads to an anhydrous white powder Z. X and Z, respectively, are:
1. Baking soda and dead burnt plaster.
2. Washing soda and soda ash.
3. Washing soda and dead burnt plaster.
4. Baking soda and soda ash

120.

The pair of compounds that do not exist in solution together are:
1. NaHCO₃ and NaOH
2. NaHCO₃ and H₂O
3. NaHCO₃ and Na₂CO₃
4. Na₂CO₃ and NaOH

121.

The correct statements among (a) to (d) are:

(a)	Saline hydrides produce H₂ gas when reacted with H₂O.
(b)	Reaction of LiAlH₄ with BF₃ leads to B₂H₆.
(c)	PH₃ and CH₄ are electron-rich and electron-precise hydrides, respectively.
(d)	HF and CH₄ are called molecular hydrides.

1. (a), (b), (c) and (d)
2. (a), (c), and (d) only
3. (c) and (d) only
4. (a), (b) and (c) only

122. Choose the incorrect pair/pairs:
a. Snow blindness - Infrared rays
b. Greenhouse effect - Methane
c. Ozone depletion - Chlorofluorocarbons
d. Biomagnification - Benzene hexachloride
1. a and b
2. a and c
3. only b
4. only a

123.

Sodium carbonate is manufactured by the Solvay process. The products that are recycled are:
1. CO₂ and NH₃
2. CO₂ and NH₄Cl
3. NaCl and CaO
4. CaCl₂ and CaO

124.

Assertion (A):	SiF₆^2- is known but SiCl₆^2- is not.
Reason (R):	The size of fluorine is small and the interaction between the lone pair of chloride ions and Si⁴⁺ is not very strong.

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	(A) is false but (R) is true.

125.

The O - O - H bond angles in the solid and gas phases of H₂O₂ are-
1. 90.2 $°$ and 111.5 $°$
2. 101.9 $°$ and 94.8 $°$
3. 90.2 $°$ and 94.8 $°$
4. 101.9 $°$ and 111.5 $°$

126.

The correct statements among I to III regarding group 13 element oxides are:
(I) Boron trioxide or diboron trioxide is acidic.
(II) Oxides of aluminium and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.
1. (I) and (II) only
2. (I) and (III) only
3. (II) and (III) only
4. (I), (II), and (III) only

127.

The volume strength of 8.9 M H₂O₂ solution calculated at 273 K and 1 atm is-
(R = 0.0821 L atm K^–1 mol^–1) rounded off to the nearest integer)
1. 100
2. 80
3. 120
4. 60

128.

Statement I:	Excess nitrate in drinking water can cause diseases such as methemoglobinemia (‘blue baby’ syndrome).
Statement II:	Sodium chlorate (NaClO₃), and sodium arsenite (Na₃AsO₃) are examples of herbicides.

1.	Both Statement-I & Statement-II are true.
2.	Both Statement-I & Statement-II are false.
3.	Statement-I is true while Statement-II is false.
4.	Statement-I is false while Statement-II is true.

129.

Assertion (A):	Internuclear distance in D₂ is equal to H₂.
Reason (R):	Enthalpy of dissociation of D₂ is more than H₂.

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	(A) is false but (R) is true.

130.

In view of the signs of $∆_{r} G °$ for the following reactions:
$\begin{array}{l} {PbO}_{2} + Pb \to 2 PbO, Δ_{r} G^{\circ} < 0 \\ {SnO}_{2} + Sn \to 2 SnO, Δ_{r} G^{\circ} > 0 \end{array}$
The oxidation states more characteristic for lead and tin are respectively:
1. For lead +2, for tin +2
2. For lead +4, for tin +4
3. For lead +2, for tin +4
4. For lead +4, for tin +2

131.

The structure of Al₂Cl₆ contains:
1. Four 2c-2e bonds and two 3c-2e bonds
2. Four 2c-2e bonds and four 3c-3e bonds
3. Four 2c-2e bonds and two 3c-4e bonds
4. Two 2c-2e bonds and four 3c-4e bonds

132.

CO₂ is passed through lime water. Initially, the solution turns milky and then becomes clear upon continued bubbling of CO₂. The clear solution is due to the formation of-
1. CaCO₃
2. CaO
3. Ca(OH)₂
4. Ca(HCO₃)₂

133.

(Me)₂SiCl₂ on hydrolysis, followed by condensation polymerization yields-

1.	(Me)₂Si(OH)₂
2.	(Me)₂Si=O
3.
4.	Me₂SiCl(OH)

134. Lithium nitrate and sodium nitrate, when heated separately, respectively, gives:
1. LiNO₂ and NaNO₂
2. Li₂O and Na₂O
3. Li₂O and NaNO₂
4. LiNO₂ and Na₂O

135.

The alloy used in the construction of aircrafts is :
1. Mg-Zn
2. Mg-Al
3. Mg-Sn
4. Mg-Mn

Chemistry - Section B

136.

The gas released during anaerobic degradation of vegetation may lead to:
1. Ozone hole
2. Acid rain
3. Corrosion of metals
4. Global warming and cancer

137.

Some statements about heavy water are given below:
(i) Heavy water is used as a moderator in nuclear reactors.
(ii) Heavy water is more associated than ordinary water.
(iii) Heavy water is a more effective solvent than ordinary water.
Which of the above statements are correct?
1. (i) and (ii)
2. (i), (ii) and (iii)
3. (ii) and (iii)
4. (i) and (iii)

138. Compound 'X' is a white crystalline solid of boron with soapy touch. 'X' is _________________

1.	Borox	2.	Orthoboric acid
3.	Boric oxide	4.	Diborane

139.

Incorrect statement among the following regarding ozone is-
1. In the stratosphere, it forms a protective shield against UV radiation.
2. It is a toxic gas and its reaction with NO gives NO₂.
3. In the stratosphere, CFCs release chlorine-free radicals which react with O₃ to give chlorine dioxide radicals.
4. In the atmosphere, it is depleted by CFCs.

140. Statement I: Radium salts are used in the treatment of cancer.
Statement II: Alkaline earth metals have high reducing power than alkali metals.
In the light of above two statements, select the correct option:
1. Statement I is true and statement II is false.
2. Statement I is false and statement II is true.
3. Both statements I and II are true.
4. Both statements I and II are false.

141.

Among the following, the metal that can be used as an electrode in a photoelectric cell is-
1. Li
2. Na
3. Rb
4. Cs

142. Which of the following is not regarded as a pollutant?
1. $CO_2$
2. $O_3$
3. $NO_2 $
4. Hydrocarbons

143.

The correct order of first ionization energy of group-14 elements is:
1. $C < S i < G e < S n < P b$
2. $C > S i > G e > S n > P b$
3. $C > S i > G e > S n < P b$
4. $C > S i < G e > S n < P b$

144. The solubility of LiF and Csl in water is X and Y respectively. The magnitudes of X and Y, respectively, are:
1. X = low, Y = high
2. X = low, Y = low
3. X = high, Y = low
4. X = high, Y = high

145. Eutrophication of lakes means:
1. low in nutrients and sediments.
2. high in nutrients and sediments.
3. high temperature.
4. less fertile.

146. The general formula of chain silicate is-
1. $SiO^{4-}_4 $
2. $[SiO^{2-}_3]_n $
3. $[Si_2O^{2-}_5]_n $
4. $Si_2O^{6-}_7 $

147. Assertion (A): PAN (Peroxy Acetyl Nitrate) is a secondary pollutant.
Reason (R): PAN is formed by the interaction of $O_3$ and $NO_2.$
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) and (R) both are false.

148. Match List I with List II:

List I	List II
Hydrides	Examples
I. Saline hydrides	A. HF
II. Electron-deficient molecular hydrides	B. B₂H₆
III. Electron-rich molecular hydrides	C. CrH
IV. Interstitial hydrides	D. BeH₂

Choose the correct answer from the options given below:
1. I-A, II-D, III-C, IV-B
2. I-D, II-B, III-A, IV-C
3. I-D, II-B, III-C, IV-A
4. I-A, II-D, III-B, IV-C

149.

Statement I:	At atmospheric pressure, ice crystallises in the cubic form, but at very low temperatures it condenses to a hexagonal form.
Statement II:	Hydrogen bonding gives ice a rather open type structure with wide holes.

1. Statement I is correct but statement II is incorrect.
2. Statement II is correct but statement I is incorrect.
3. Both statement I and statement II are correct.
4. Both statement I and statement II are incorrect.

150.

The metal that gives hydrogen gas upon treatment with both acids, as well as the base, is:
1. Fe
2. Mg
3. Zn
4. Cd

Physics - Section A

151.

A container with rigid walls is covered with a perfectly insulating material. The container is divided into two parts by a partition. One part contains a gas while the other is fully evacuated (vacuum). The partition is suddenly removed. The gas rushes to fill the entire volume and comes to an equilibrium after a little time. If the gas is not ideal, which of the following statements is correct?

1.	The initial internal energy of the gas equals its final internal energy.
2.	The initial temperature of the gas is not equal to its final temperature.
3.	The initial pressure of the gas equals its final pressure.
4.	The initial entropy of the gas equals its final entropy.

152.

The time period of the given spring-mass system is:

1.	$2\pi \sqrt{\dfrac{m}{k}}$	2.	$2\pi \sqrt{\dfrac{m}{2k}}$
3.	$2\pi \sqrt{\dfrac{2m}{\sqrt{3}k}}$	4.	$\pi \sqrt{\dfrac{m}{k}}$

153. The displacement of a body moving along the $\mathrm{x}$-axis is represented by the equation:
$x = 3~\text{sin}(\pi t)+4~\text{sin}(2 \pi t).$
Based on this expression, how can the nature of the body's motion be characterized?

(A)	Simple harmonic motion
(B)	Non-periodic motion
(C)	Oscillatory motion
(D)	Periodic motion

Choose the correct option from the options given below:

1.	(A), (B), (C) and (D)
2.	(B), (C) and (D) only
3.	(C) and (D) only
4.	only (D)

154. Given below are two statements:

Assertion (A):	A group of soldiers is asked to break steps while crossing the bridge.
Reason (R):	The frequency of matching may be equal to the natural frequency of the bridge and may lead to resonance which can break the bridge.

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

155. Sound travels in a mixture of two moles of helium and $n$ moles of hydrogen. If RMS speed of gas molecules in the mixture is $\sqrt 2$ times the speed of sound, then the value of $n$ will be:
1. $1$
2. $2$
3. $3$
4. $4$

156. A thermally insulated vessel contains an ideal gas of molecular mass $M$ and a specific heat ratio of $1.4.$ The vessel is moving with speed $v$ and is suddenly brought to rest. Assuming no heat is lost to the surroundings, then the vessel temperature of the gas increases by:
($R=$ universal gas constant)

1.	$\dfrac{M v^2}{7 R} $	2.	$\dfrac{M v^2}{5 R} $
3.	$\dfrac{2M v^2}{7 R} $	4.	$\dfrac{7M v^2}{5 R} $

157. An ideal gas heat engine operating in a Carnot cycle absorbs heat at $127^\circ \text{C}$ from the source and exhaust at $87^\circ \text{C}$ in the sink. The efficiency of the heat engine is:

1.	$1\text{%}$	2.	$5\text{%}$
3.	$10\text{%}$	4.	$20\text{%}$

158. One mole of an ideal monoatomic gas undergoes an isothermal expansion at a constant temperature $T$. If the initial and final values of its pressure and volume are $(P_{1}, V_{1})$ & $(P_{2}, V_{2})$ respectively, the amount of heat energy supplied to the gas during this change is:

1.	$RT~ \ln\left ( \dfrac{P_{1}}{P_{2}} \right ) $
2.	$\dfrac{3}{2}RT+RT~ \ln\left ( \dfrac{P_{1}}{P_{2}} \right ) $
3.	$\dfrac{5}{2}RT+RT~ \ln\left ( \dfrac{P_{1}}{P_{2}} \right ) $
4.	$RT ~\ln\left ( \dfrac{V_{1}}{V_{2}} \right ) $

159.

A graph shows the distribution of kinetic energy $E_{k}$ among the constituent molecules of a gas at a given temperature. $N$ is the number of molecules each having energy in a small energy band as shown. Choose the correct statement.

1.	the value of $E_{k}$at which the peak of the curve occurs increases when the temperature rises.
2.	kinetic energy possessed by the maximum number of molecules is also the greatest kinetic energy of any of the molecules.
3.	the total kinetic energy of the total gas molecules is independent of the temperature of the gas.
4.	the average velocity of the molecules in the gas sample depends upon the temperature as per the graph.

160. A monoatomic gas is at a given pressure $(P)$ and volume $(V).$ If the gas is suddenly compressed to one-eighth of its original volume, then the final pressure will be:
1. $P$
2. $8P$
3. $32P$
4. $64P$

161. In a travelling wave;
$y=0.1 \sin \pi\left(x-330 t+\dfrac{2}{3}\right) $ (SI units). The phase difference between $x_{1}=3 ~\text m$ and $x_{2}=3.5 ~\text m$ is:

1.	$\dfrac \pi 2$	2.	$\pi $
3.	$\dfrac {3\pi} 2$	4.	$2\pi $

162.

Which of the following can not determine the state of a thermodynamic system?

1.	pressure and volume
2.	volume and temperature
3.	temperature and pressure
4.	any one of pressure, volume, or temperature

163. Let $C_{p}$ and $C_{v}$ denote the molar heat capacities of an ideal gas at constant pressure and volume, respectively. Which of the following is a universal constant?
1. $C_{p}/C_{v}$
2. $C_{p}\times C_{v}$
3. $C_{p}-C_{v}$
4. $C_{p}+C_{v}$

164. Which of the following statement is true?

1.	transverse waves cause the medium to move parallel to the direction of the wave.
2.	the sound waves in the air are transverse while the light waves are longitudinal.
3.	both light and sound waves in the water are transverse.
4.	the sound waves in the air are longitudinal while the light waves are transverse.

165. Three waves from three coherent sources meet at some point. Each has an amplitude $A_{0}$ and corresponding intensity $I_{0}.$ The phase difference between the first and second wave is $60^\circ$ and phase difference between the first and third wave is $120^\circ.$ The first wave is lagging behind in phase angle from both the second and third wave. The resultant intensity at this point is:
1. $4I_{0}$
2. $2I_{0}$
3. $\sqrt{3}I_{0}$
4. $16I_{0}$

166.

A sound wave with a frequency of $100$ kHz is propagating through the air and encounters a water surface. The transmitted sound wave in the water will have:

1.	the same speed but a different frequency
2.	a different speed and a different frequency
3.	the same speed but a different wavelength
4.	a different speed and a different wavelength

167.

On the basis of the kinetic theory of gases, one compares $1~\text{gm}$ of hydrogen with $1~\text{gm}$ of argon both at $0^\circ \text{C}.$ Then:

1.	the same temperature implies that the average kinetic energy of the molecules is the same in both cases.
2.	the same temperature implies that the average potential energy of the molecules is the same in both cases.
3.	the internal energies in both cases are equal.
4.	when both the samples are heated by $1^\circ \text{C},$ the total energy added to both of them is the same.

168. A siren emitting a sound of frequency $800$ Hz is going away from a static listener with a speed of $30$ m/s. The frequency of the sound to be heard by the listener is: (Take velocity of sound $=330$ m/s)
1. $733.3$ Hz
2. $644.8$ Hz
3. $481.2$ Hz
4. $286.5$ Hz

169. A sitar wire is replaced by another wire of the same length and material but with double the radius. If the tension in the wire remains the same, the fundamental frequency will become:
1. nine times
2. double
3. half
4. one-ninth

170. A body of mass $4~\text{kg}$ is executing SHM. Its potential energy varies with $x$ as; $U=\left [ \left ( x-2 \right )^{2}+20 \right ]~\text J.$ If the total energy of the body is $70~\text J,$ its maximum speed is:
1. $\sqrt{23}~\text{m/s}$
2. $\sqrt{25}~\text{m/s}$
3. $\sqrt{27}~\text{m/s}$
4. $\sqrt{35} ~\text{m/s}$

171. According to Clausius's statement:

1.	no process is possible whose sole result is the transfer of heat from a colder object to a hotter object.
2.	no process is possible whose sole result is the absorption of heat from a reservoir and the complete conversion of the heat into work.
3.	the heat released to the cold reservoir can never be made zero.
4.	none of the above.

172. If the equation of a wave is represented by $y=10^{-4} \sin \left(100 t-\frac{x}{10}\right) \text{m}$, then the velocity of the wave will be:
1. $100~\text{m/s}$
2. $4~\text{m/s}$
3. $1000~\text{m/s}$
4. $0$

173. A body is performing simple harmonic motion with an amplitude of $10~\text{cm}.$ The velocity of the body was tripled by air jet when it is at $5~\text{cm}$ from its mean position. The new amplitude of vibration is $\sqrt x~\text{cm}.$ The value of $x $ is:

1.	$500$	2.	$600$
3.	$700$	4.	$800$

174. The $(P\text-V)$ diagram of a gas system undergoing a cyclic process is shown in the given figure. The work done by the gas during isobaric compression is:

1. $150~\text J$
2. $-200~\text J$
3. $-400~\text J$
4. $-250~\text J$

175. What should be the length of a simple pendulum-based clock that ticks every second?
(take $g=10~\text{m/s}^2;$ $\pi^2=10$ )

1.	$4~\text m$	2.	$2~\text m$
3.	$1~\text m$	4.	$0.5~\text m$

176. $7$ mole of a certain monoatomic ideal gas undergoes a temperature increase of $40~\text{K}$ at constant pressure. The increase in the internal energy of the gas in this process is:
(Given: $R=8.3~ \text{J-K}^{-1} \text{mol}^{-1}$)
1. $5810~\text{J}$
2. $3486~\text{J}$
3. $11620~\text{J}$
4. $6972~\text{J}$

177. Two identical simple pendulums are compared, one $(A)$ located on the surface of the earth and the other $(B)$ – at a height $(h)$ above the earth's surface: $h=\dfrac{R}{1000}.$
Their time periods are related as:
1. $T_A\Big(1+\dfrac{1}{1000}\Big)=T_B$
2. $T_B\Big(1+\dfrac{1}{1000}\Big)=T_A$
3. $T_A\Big(1+\dfrac{1}{2000}\Big)=T_B$
4. $T_B\Big(1+\dfrac{1}{2000}\Big)=T_A$

178. Given below are two statements:

Statement I:	If the acceleration of a particle is directed towards a fixed point, and proportional to the distance from that point – the motion is SHM.
Statement II:	During SHM, the kinetic energy of the particle oscillates at twice the frequency of the SHM.

1.	Statement I is incorrect and Statement II is correct.
2.	Both Statement I and Statement II are correct.
3.	Both Statement I and Statement II are incorrect.
4.	Statement I is correct and Statement II is incorrect.

179. The equation of stationary wave along a stretched string is given by; $y=5 \sin \left ( \dfrac{\pi x}{3} \right ) \cos (40 \pi t)$, where $x$ and $y$ are in $\text{cm}$ and $t$ in seconds. The separation between two adjacent nodes is:

1.	$1.5~\text{cm}$	2.	$3~\text{cm}$
3.	$6~\text{cm}$	4.	$4~\text{cm}$

180. An electric heater supplies $6000$ J of heat to a system and the system performs $3000$ J of work. What is the increase in the internal energy of the system?
1. $6000$ J
2. $9000$ J
3. $3000$ J
4. zero

181.

Given below are two statements:

Statement I:	A pressure wave can be generated from a displacement wave.
Statement II:	Displacement and pressure waves have a phase difference of $\dfrac{\pi }{2}.$

1.	Statement I is incorrect and Statement II is correct.
2.	Both Statement I and Statement II are correct.
3.	Both Statement I and Statement II are incorrect.
4.	Statement I is correct and Statement II is incorrect.

182. An observer is riding on a bicycle and moving towards a hill at $18$ kmh^-1. He hears a sound from a source at some distance behind him directly as well as after its reflection from the hill. If the original frequency of the sound as emitted by the source is $640$ Hz and the velocity of the sound in air is $320$ m/s, the beat frequency between the two sounds heard by the observer will be:
1. $20$ Hz
2. $40$ Hz
3. $60$ Hz
4. $10$ Hz

183. A pipe of length $11~\text{cm}$ is closed at one end. The first harmonic frequency of the pipe in the air at $0^\circ \text{C}$ is:
(the velocity of sound at $0^\circ \text{C}=330~\text{m/s}$)
1. $1200~\text{Hz}$
2. $1000~\text{Hz}$
3. $800~\text{Hz}$
4. $750~\text{Hz}$

184. Match List-I with List-II.

List-I ($x \text{-}y$ graphs)	List-II (Situations)
(a)	(i)	Total mechanical energy is conserved
(b)	(ii)	Bob of a pendulum is oscillating under negligible air friction
(c)	(iii)	Restoring force of a spring
(d)	(iv)	Bob of a pendulum is oscillating along with air friction

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
1.	(iv)	(ii)	(iii)	(i)
2.	(iv)	(iii)	(ii)	(i)
3.	(i)	(iv)	(iii)	(ii)
4.	(iii)	(ii)	(i)	(iv)

185. A vessel contains $16$ g of hydrogen and $128$ g of oxygen at standard temperature and pressure. The volume of the vessel in cm³ is:
1. $72\times10^{5}$
2. $32\times10^{5}$
3. $27\times10^{4}$
4. $54\times10^{4}$

Physics - Section B

186. A waveform given by: $y=3A\sin(\omega t-kx)$
is superposed with another waveform $y=4A\cos(\omega t-kx).$ The amplitude of the resulting waveform will be:

1.	$7A$	2.	$A$
3.	$3.5A$	4.	$5A$

187.

If a simple pendulum is brought deep inside a mine from the earth's surface, its time period of oscillation will:

1.	increase
2.	decrease
3.	remain the same
4.	be any of the above, depending on the length of the pendulum

188.

The temperature at which the RMS speed of atoms in neon gas is equal to the RMS speed of hydrogen molecules at $15^{\circ} \text{C}$ is:
(the atomic mass of neon $=20.2~\text u,$ molecular mass of hydrogen $=2~\text u$)
1. $2.9\times10^{3}~\text K$
2. $2.9~\text K$
3. $0.15\times10^{3}~\text K$
4. $0.29\times10^{3}~\text K$

189.

The internal energy of a gas is given by $U=2pV.$ The gas expands from $100$ cc to $200$ cc against a constant pressure of $10^{5}$ Pa. The heat absorbed by the gas is:

1.	$10$ J	2.	$20$ J
3.	$30$ J	4.	$40$ J

190.

If the vertical spring-mass system is dipped in a non-viscous liquid, then:

1.	Only the mean position changes.
2.	Only the time period changes.
3.	Both the time period and mean position change.
4.	Both the time period and mean position remain the same.

191.

If the pressure in a closed vessel is reduced by removing some of the gas, how is the mean free path between two gas molecules affected?

1.	It increases.
2.	It decreases.
3.	It remains unchanged.
4.	It increases or decreases depending on the nature of the gas.

192. A rope of uniform mass per unit length $\mu$ is suspended from the ceiling, hanging under its own weight. If a small transverse pulse is formed at its lower end $A$, it travels upward with a local speed $v=\sqrt {\dfrac{\text{tension}}{\text{mass/length}}}$.

The speed of the pulse is:

1.	maximum at $A,$ minimum at $O$
2.	minimum at $A,$ maximum at $O$
3.	uniform
4.	minimum at $A$ and $O,$ maximum in the middle

193. During an experiment, an ideal gas is observed to obey the law: $PV^3= \text{constant}$, as the process is conducted. If the volume of the gas doubles during this process, the absolute temperature of the gas changes from $T$ to:

1.	$2T$	2.	$4T$
3.	$\dfrac T 2$	4.	$\dfrac T 4$

194.

A spring-block system shown in the figure oscillates with a certain time period. If charge $q$ is given to the block and a uniform field $E$ is switched on, then its time period of oscillation is:

1. increases
2. decreases
3. may increase or decrease
4. remains the same

195. A gas expands from $i$ to $f$ along the three paths indicated. The work done along the three paths denoted by $W_1, W_2, ~\text{and}~W_3$ have the relationship:

1.	$W_1<W_2<W_3$	2.	$W_2<W_1=W_3$
3.	$W_2<W_1<W_3$	4.	$W_1>W_2>W_3$

196. A Carnot engine having efficiency of $25\text{%}$ is driven in reverse, so to act as a refrigerator. The coefficient of performance of the refrigerator is:
1. $3$
2. $4$
3. $5$
4. $8$

197. Which of the following figure represents the amplitude of damped oscillation?

1.		2.
3.		4.

198. The function $f(t)=\text{sin}\omega t+\text{cos}\omega t$ is periodic. What is its time period?
1. $\dfrac{\pi}{\omega}$
2. $\dfrac{2\pi}{\omega}$
3. $\dfrac{1}{\omega}$
4. $\dfrac{\omega}{2\pi}$

199. The average energy of a molecule for each degree of freedom is:

1.	$\dfrac{3}{2} kT$	2.	$\dfrac{kT}{2}$
3.	$\dfrac{3}{4} kT$	4.	$kT$

200. Given below are two statements:

Assertion (A):	The molar heat capacity of the gas can have any value from $-\infty$ to $\infty$.
Reason (R):	The molar heat capacity of the gas for the isothermal process is $\infty$.

1.	Both (A) and (R) are True and (R) is the correct explanation of (A).
2.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.	(A) is True but (R) is False.
4.	Both (A) and (R) are False.

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1.	\(\mathrm{ADP}+\mathrm{AMP} \xrightarrow{\text { Lightenergy }} \text { ATP }\)
2.	\(\mathrm{ADP}+\text { Inorganic } \mathrm{PO}_4 \xrightarrow{\text { Lightenergy }} \text { ATP }\)
3.	\(\text { ADP }+ \text { Inorganic } \mathrm{PO}_4 \rightarrow \text { ATP }\)
4.	\(\mathrm{AMP}+\text { Inorganic } \mathrm{PO}_4 \xrightarrow{\text { Lightenergy }} \text { ATP }\)

1.	\(2\pi \sqrt{\dfrac{m}{k}}\)	2.	\(2\pi \sqrt{\dfrac{m}{2k}}\)
3.	\(2\pi \sqrt{\dfrac{2m}{\sqrt{3}k}}\)	4.	\(\pi \sqrt{\dfrac{m}{k}}\)

1.	\(\dfrac{M v^2}{7 R} \)	2.	\(\dfrac{M v^2}{5 R} \)
3.	\(\dfrac{2M v^2}{7 R} \)	4.	\(\dfrac{7M v^2}{5 R} \)

1.	\(1\text{%}\)	2.	\(5\text{%}\)
3.	\(10\text{%}\)	4.	\(20\text{%}\)

1.	\(RT~ \ln\left ( \dfrac{P_{1}}{P_{2}} \right ) \)
2.	\(\dfrac{3}{2}RT+RT~ \ln\left ( \dfrac{P_{1}}{P_{2}} \right ) \)
3.	\(\dfrac{5}{2}RT+RT~ \ln\left ( \dfrac{P_{1}}{P_{2}} \right ) \)
4.	\(RT ~\ln\left ( \dfrac{V_{1}}{V_{2}} \right ) \)

1.	the value of \(E_{k}\)at which the peak of the curve occurs increases when the temperature rises.
2.	kinetic energy possessed by the maximum number of molecules is also the greatest kinetic energy of any of the molecules.
3.	the total kinetic energy of the total gas molecules is independent of the temperature of the gas.
4.	the average velocity of the molecules in the gas sample depends upon the temperature as per the graph.

1.	\(\dfrac \pi 2\)	2.	\(\pi \)
3.	\(\dfrac {3\pi} 2\)	4.	\(2\pi \)

1.	\(4~\text m\)	2.	\(2~\text m\)
3.	\(1~\text m\)	4.	\(0.5~\text m\)

1.	\(1.5~\text{cm}\)	2.	\(3~\text{cm}\)
3.	\(6~\text{cm}\)	4.	\(4~\text{cm}\)

List-I (\(x \text{-}y\) graphs)	List-II (Situations)
(a)	(i)	Total mechanical energy is conserved
(b)	(ii)	Bob of a pendulum is oscillating under negligible air friction
(c)	(iii)	Restoring force of a spring
(d)	(iv)	Bob of a pendulum is oscillating along with air friction

1.	maximum at \(A,\) minimum at \(O\)
2.	minimum at \(A,\) maximum at \(O\)
3.	uniform
4.	minimum at \(A\) and \(O,\) maximum in the middle

1.	\(W_1<W_2<W_3\)	2.	\(W_2<W_1=W_3\)
3.	\(W_2<W_1<W_3\)	4.	\(W_1>W_2>W_3\)

1.	\(\dfrac{3}{2} kT\)	2.	\(\dfrac{kT}{2}\)
3.	\(\dfrac{3}{4} kT\)	4.	\(kT\)

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