Which of the following is correct for the function of calcium?
1. Helps in the synthesis of middle lamella.
2. It is required during the formation of spindle fibres.
3. It is required by meristematic as well as
differentiating tissues.
4. All of the above.
The symptoms due to toxicity of elements are difficult to identify as
1. Toxicity of micronutrients lead to the deficiency of macronutrients express the symptoms.
2. Deficiency of macronutrient leads to the toxicity micronutrients.
3. Toxicity of macronutrient leads to the deficiency of micronutrient.
4. More than one option is correct.
Which of the following plant hormones would most likely
be found in high concentrations in a mature, slightly
over-ripe fruit
1. Cytokinin and ethylene.
2. ABA and ethylene.
3. GA and ABA.
4. Auxin and cytokinin
If insufficient PTH is produced, the blood calcium level drops, resulting in ______.
1. reduced growth in childhood or parathyroid dwarfism
2. tetany, where the body shakes from continuous muscle contraction
3. osteoporosis
4. blood clotting
Which of the following statements is NOT correct?
1. Microvilli increase the surface area of the small intestine for the absorption of nutrients.
2. Enzymes located on the brush border finish the digestion of chyme.
3. Absorption is an active process in the small intestine.
4. Sugars and amino acids cross columnar epithelial cells to enter the lacteal.
Which of the following comparisons is NOT
correct?
1. jaundice--abnormally large amount of bilirubin
in the skin and the whites of the eyes
2. ulcer--open sore in the wall of the stomach
3. peritonitis--inflammation of the cecum
4. cirrhosis--liver first becomes fatty and then replaced
by fibrous scar tissue
Out of the following how many are micronutrient and
macronutrient?
Cu, S, Ca, Zn, Mn, Mg, Cl, Fe, B
Micronutrient Macronutrient
1. 5 4
2. 6 3
3. 7 2
4. 4 5
Select the correct option with respect to activator of element
1. Mg – Carboxylase
Zn – Rubisco
Fe – Nitrogenase
Mo – Catalase
2. Mg – Rubisco
Zn – Carboxylase
Fe – Catalase
Mo – Nitrogenase
3. Mg – Carboxylase
Zn – Rubisco
Fe – Catalase
Mo – Nitrogenase
4. Mg – Rubisco
Zn – Carboxylase
Fe – Nitrogenase
Mo – Catalase
A. _______ hormone is most widely used PGR in
agriculture.
B. _______ hormone is related with Richmond Lang
effect.
A B
1. Auxin CK
2. Auxin GA
3. Ethylene CK
4. ABA CK
What conditions are required for vernalisation in
plants?
1. Low temperature, CO2.
2. Low temperature, O2, leaf.
3. Optimum temperature, O2.
4. Low temperature, O2.
Which statement is incorrect with respect to photoperiodism in
plants?
1. The site of perception of light/dark duration is
cotyledons or embryo.
2. It depends on duration of light/dark.
3. Critical exposure of light/dark is required.
4. When there is no correlation between exposure
to light duration and induction of flowering
response, plants are called day neutral plants.
Mark the incorrect match
Secretion |
Composition |
|
1. |
Pancreatic juice |
Amylases,lipases, Nucleases, procarboxypeptidases |
2. |
Bile |
Bilirubin, bile salts, cholesterol, phospholipids. |
3. |
Succus entericus |
Amylases, dipeptidases, lipases, nucleosidases |
4. |
saliva |
Amylases, Lysozyme, K+, HCO3- |
How many statements are false from given
information?
(a) Ribozymes are enzyme made up of protein.
(b) In every chemical reaction transition state
energy is always greater than activation energy.
(c) Co-factors are always proteinous in nature
(d) Enzyme inhibition can not be removed.
(e) Enzyme action can be stopped at low temp.
(f) Km value (Michaelis constant) is the specific
concentration of substrate molecule.
1. 2
2. 3
3. 4
4. 5
Thyrotrophic releasing factor (TRF) is secreted by
1. Hypothalamus
2. Adenopophysis
3. Pars intermedia
4. Neurohypophysis
If Henle's loop were absent from man nephron, which of the following is to be expected?
1. The urine will be more dilute
2. The urine will be more concentrated
3. There will be hardly any change in the quality and quantity of urine formed
4. There will be no urine formation
When a person is suffering from poor renal reabsorption, then which of the following will not help in the maintenance of blood volume?
1. Decreased glomerular filtration
2. Increased ADH secretion
3. Decreased arterial pressure in kidney
4. Increased arterial pressure in kidney
Due to insufficient filtration in the Bowman's capsule, all are likely to happen except:
1. Accumulation of fluid in the body
2. Increase in blood pressure
3. Increase in blood urea level
4. Increase in GFR
The process of release of urine is called micturition and the neural mechanisms causing it is called the micturition reflex.
(i) Urine formed by the nephron is ultimately carried to the urinary bladder
(ii) This signal is initiated by the stretching of the urinary bladder as it gets filled with urine
(iii) In response, the stretch receptors on the bladder send signals to the CNS
(iv) The CNS passes motor messages to initiate the contraction of smooth muscles of the bladder causing the release of urine
Choose the correct option which contains the correct order of phenomena of micturition.
1. (i),(ii),(iii) and (iv)
2. (ii),(i),(iii) and (iv)
3. (iii),(ii),(i) and (iv)
4. (iv),(ii),(iii) and (i)
Match the terms given in Column-I with their physiological processes given in column-II and choose the correct answer:
Column-I |
Column-II |
||
(A) |
Proximal convoluted tubule |
(i) |
Formation of concentrated urine |
(B) |
Distal convoluted tubule |
(ii) |
Filtration of blood |
(C) |
Henle’s loop |
(iii) |
Reabsorption of 70-80% of electrolytes |
(D) |
Counter-current mechanism |
(iv) |
Ionic balance |
(E) |
Renal corpuscle |
(v) |
Maintainance of a concentration gradient in the medulla |
1. (A)-(iii); (B)-(v); (C)-(iii); (D)-(ii); (E)-(i)
2. (A)-(iii); (B)-(iv); (C)-(i);(D)-(v);(E)-(ii)
3. (A)-(i);(B)-(iii); (C)-(ii); (D)-(v);(E)-(iv)
4. (A)-(iii) ; (B)-(i) ; (C)-(iv) ; (D)-(v) ; (E)-(ii)
A fall in glomerular filtration rate (GFR) activates:
1. Adrenal cortex to release aldosterone
2. Adrenal medulla to release adrenaline
3. Posterior pituitary to release vasopressin
4. Juxtaglomerular cells to release renin
Thrombokinase performs a specific function in human body
Choose the correct option
1. Thrombin Prothrombin
2. Fibrinogen Fibrin
3. Fibrin Fibrinogen
4. Prothrombin Thrombin
T-wave in electrocardiogram represents
1. The return of ventricles from excited to normal state.
2. Depolarisation of ventricles from normal to excited state.
3. Onset of atrial systole.
4. Onset of atrial diastole.
Which of the following is not associated with micturition reflex?
1. Relaxation of urethral sphincter
2. Contraction of detrusor muscle
3. Activation of stretch receptors in wall of ureters
4. Neural mechanism govern micturition reflex
Mark the incorrect statement with respect to counter current mechanism
1. Osmolarity of filtrate increases while moving down the descending limb of loop of Henle
2. There will be no urine formation if loop of Henle is absent in mammalian nephrons
3. NaCl and urea maintain the osmolarity gradient in medulla
4. Osmolarity of fluid moving out from the collecting duct is four times that of plasma
Read the following statements regarding various steps of urine formation
A. Blood flows through glomerular capillaries under a pressure created due to difference in diameter of afferent and efferent arterioles
B. Filtrate formed after ultrafiltration is isotonic to blood plasma
C. Reabsorption of glucose occurs throughout the tubules of the nephron
D. Selective tubular secretion of H+ and K+ ions help in maintaining an ionic balance of body
Select the option having only correct statements
1. A and C
2. B, C and D
3. A, B, and D
4. C and D
The correct sequences of layers in the wall of the alimentary canal from lumen to outside is:
1. Serosainner circular muscle outer longitudinal muscle sub-mucosa mucosa
2. Mucosasub-mucosainner circular muscle outer longitudinal muscleserosa
3. Serosasub-mucosamucosainner circular muscleouter longitudinal muscle
4. Mucosaserosainner circular muscleouter longitudinal musclesub-mucosa
Select the correct option that represents the enzyme composition of succus entericus
1. Pepsin, amylase, rennin, lipase
2. Enterocrinin, carboxypeptidase, trypsin, elastase
3. Enterokinase, nucleosidase, dipeptidase, lactase
4. Renin, pepsinogen, trypsinogen, lipase
Osmotic pressure of a solution is
1. more than that of pure solvent
2. less than that of pure solvent
3. variable depending upon concentration
4. equal to that of pure solvent
Which one of the following elements in plants
is not remobilized?
1. Calcium
2. Potassium
3. Zinc
4. Phosphorus
The continuous excretion of watery substance
from stump of a well-watered potted plant after
cutting off the shoot slightly above the base is
due to
1. root pressure
2. guttation
3. transpiration
4. imbibitions
A decrease in the pH of human blood caused by
exercise would
1. decrease breathing rate
2. increase heart rate
3. decrease the amount of O2 unloaded from
hemoglobin
4. decrease cardiac output
A major difference in the mechanism of action between
steroid and peptide hormones is that
1. steroid hormones mainly affect the synthesis of
proteins, whereas peptide hormones mainly
affect the activity of proteins already in the cell
2. target cells react more rapidly to steroid
hormones than they do to peptide hormones
3. steroid hormones enter the nucleus, whereas
peptide hormones stay in the cytoplasm
4. steroid hormones bind to a receptor protein,
whereas peptide hormones bind to G protein
Which of the following hormones is incorrectly paired with its action?
1. oxytocin–stimulates uterine contractions during childbirth
2. thyroxine–stimulates metabolic processes
3. insulin–stimulates glycogen breakdown in the liver
4. ACTH–stimulates the release of glucocorticoids by the adrenal cortex
The role of calcium in muscle contraction is
1. to break the cross-bridges as a cofactor in the
hydrolysis of ATP
2. to bind with troponin, changing its shape so that
the actin filament is exposed
3. to transmit the action potential across the
neuromuscular junction
4. to spread the action potential through the T
tubules
Leucocytes with bilobed nucleus, produced in Red
Bone marrow and anthistaminic in function are
1. Basophils
2. Eosinophils
3. Neutrophils
4. Monocytes
The atrial wall of our heart secretes a very important peptide hormone called______, which_____ because
it causes dilation of the blood vessels. Choose the option which correctly fills the blank.
1. Rennin, increases the blood pressure
2. Angiotensinogen, decreases the blood pressure
3. Atrial natriuretic factor, increases the blood pressure
4. Atrial natriuretic factor, decreases the blood pressure
Which of the following statement is not correct for normal ECG?
1. | P-wave represents electrical excitation/depolarisation of atria |
2. | QRS complex represents the depolarisation of ventricle |
3. | By counting the QRS complexes that occur in a given period time, one can determine the heart beat rate of an individual |
4. | T wave represents the beginning of ventricular systole |
Which of the following statements about cross-bridges
is false?
1. They are composed of myosin
2. They bind to ATP after they attach to actin
3. They contain an ATPase
4. They split ATP before they attach to actin
The best explanation for the slow movement of blood
in capillaries is
1. skeletal muscles press on veins, not capillaries
2. capillaries have much thinner walls than arteries
3. there are many more capillaries than arterioles
4. venules are not prepared to receive so much
blood from the capillaries
Which of these pairs is mismatched?
1. slightly movable joint–vertebrae
2. hinge joint–hip
3. immovable joint–sutures in cranium
4. ball and socket joint–hip
Which of these sequences describes the correct path
for light rays entering the human eye?
1. sclera, retina, choroid, lens, cornea
2. fovea centralis, pupil, aqueous humor, lens
3. cornea, pupil, lens, vitreous humor, retina
4. cornea, fovea centralis, lens, choroid, rods
Our perception of pitch is dependent upon the region
of the ___vibrated and the regions of
the_____stimulated
1. cochlea, spinal cord
2. basilar membrane, spinal cord
3. basilar membrane, auditory cortex
4. cochlea, cerebellum
Different blood groups are due to:
1. Specific antigens on the surface of WBCs
2. Specific antibodies on the surface of RBCs
3. Specific antigens on the surface of RBCs
4. Specific type of haemoglobin in RBCs
Diaphragm is a dome shaped muscular structure which separates
1. Coelomic cavity from pelvic cavity
2. Pleural cavity from thoracic cavity
3. Thoracic cavity from the abdominal cavity
4. Pelvic cavity from abdominal cavity
Lymph differs from blood in possessing
1. More proteins and less waste products
2. Less proteins and more waste products
3. More proteins and more waste products
4. Less proteins and less waste products
The longest bone of the body is
1. Phalanges
2. Tarsal
3. Femur
4. Metatarsal
The components of the vestibular apparatus are:
1. Three semicircular canals and the otolith organs
2. Organ of corgi and eustachian tube
3. Malleus, incus and stapes
4. Saccule and cochlea
Nissl's granules are present in which part of a neuron?
1. Cyton
2. Synaptic knobs
3. Axon
4. Nerve endings
Inspiration occurs when intra-pulmonary pressure is
1. Higher than atmospheric pressure
2. Lower than atmospheric pressure.
3. Equal to atmospheric pressure.
4. Zero compared to atmospheric pressure.
A patch of nodal tissue responsible for initiating the rhythmic contractile activity of the heart is present in:
1. Lower left corner of the left ventricle
2. Upper right corner of the right atrium
3. Lower left corner of the right ventricle
4. Upper left corner of the left atrium
Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/characteristics
1. B - Blind spots - has only a few rods and cones.
2. C- Aqueous chamber - reflects the light which does not pass through the lens.
3. D- Choroid - its anterior part forms ciliary body.
4. A - retina - contains photo receptors - rods and cones.
Which substances when present in high level can activate the chemosensitive area present adjacent to rhythm centre?
1.
2.
3.
4.
Read the following:
a. Lymph absorbs and transports fat from the intestine.
b. Lymph nodes produce fibrinogen.
c. Lymphatic capillaries present in the intestinal villi are known as lacteals.
d. Lymph transports oxygen only.
Which of these statements are true?
1. a, c
2. b, d
3. c, d
4. a, b
Match the following
Column I Column II
a. Tarsal (i) 14
b. Phalanges (ii) 1
c. Meta tarsal (iii) 7
d. Femur (iv) 5
1. a (iii), b (i), c (iv), d (ii)
2. a (i), b (ii), c (iii), d (iv)
3. a (ii), b (iii), c (iv), d (i)
4. a (iv), b (i), c (iii), d (ii)
What happens to the volume of the pulmonary cavity when there is an increase in the volume of the thoracic chamber?
1. It decreases
2. It increases
3. It remains the same
4. First decreases and then increases
In which of the following part of the brain, the nerve impulses of sound are analyzed?
1. Visual cortex area
2. Olfactory cortex area
3. Auditory cortex area
4. Tactile cortex area
How many of the following can help in breaking seed dormancy?
1. Changing the environmental condition like light & temperature.
2. Application of GA3 or nitrates.
3. Chilling condition.
4. All the above
Which of the following is not correctly matched?
PGR Function
1. Auxin Flowering in mango.
2. ABA Dormancy of seed.
3. GA3 Breaking seed dormancy.
4. Ethylene Sprouting of potato.
How many of the following statements are correct?
(i) In plants each organ receiving some substances & giving out some others.
(ii) Water channels are made up of eight different types of aquaporins.
(iii) Water is often a limiting factor for plant growth & productivity in both agricultural & Natural environments.
(iv) Imbibition is also diffusion.
Options:
1. All the above
2. (i), (ii) & (iv)
3. (ii), (iii) & (iv)
4. (iii) & (iv)
In the xylem, a continuous chain of water, when it is broken, is re-established by:
1. Guttation
2. Root pressure
3. Imbibition
4. Transpiration
Sunlight is essential for photosynthesis is established
by
1. Jan Ingenhousz
2. Robert Hill
3. Emerson
4. Julius Von Sach
Why breakdown of proton gradient is essential during
photosynthesis
1. It leads to production of NADPH.
2. It leads to production of O2
3. It leads to production of ATP.
4. Both 1 and 3
The following processes occur during photosynthesis
(i) Reduction of carbon dioxide
(ii) The splitting of water
(iii) The synthesis of glucose
(iv) Release of oxygen
(v) Formation of ATP
Which one of the following combinations is correct for the light phase ?
1. i, ii and iii
2. iii, iv and v
3. i, iii and iv
4. ii, iv and v
During aerobic respiration hydrogen from the system is
removed by?
1. O2
2. NADP
3. FMN
4. UQ
Mark the incorrect match
Aerobic Anaerobic
1. Complete breakdown - Partial breakdown.
of glucose
2. Net gain 38 ATP - Net gain 2 ATP.
3. Vigrously - NADH oxidised slowly
4. CO2 released - No CO2 released.
Statement - 1 : Respiration is amphibolic pathway.
Statement - 2 : Pure fat & pure protein can never be
respiratory substrate.
Option :
1. Only second statement is correct.
2. Both statements are correct.
3. Neither first nor second is correct.
4. Only first statement is correct
Match column I with column II:
Column I | Column II | ||
(a) | Vomiting | (i) | Inadequate enzyme secretion |
(b) | Diarrhoea | (ii) | Irregular bowel movement |
(c) | Constipation | (iii) | Increased liquidity of faecal discharge |
(d) | Indigestion | (iv) | A feeling of nausea |
(a) | (b) | (c) | (d) | |
1. | (i) | (iii) | (ii) | (iv) |
2. | (iv) | (ii) | (iii) | (i) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (i) | (ii) | (iii) | (iv) |
Which of the following statement is true for structure
marked ‘A’ in the given figure?
1. In it centripetal conduction takes place.
2. Nissl’s granules are present.
3. Present in non polar neuron.
4. Present in pseudounipolar neuron.
How many hormones in the given list are not produced by the anterior pituitary?
Prolactin(PRL), growth hormone(GH), Oxytocin, Thyroid stimulating hormone(TSH), vasopressin, somatostatin, and Gonadotrophin releasing hormone(GnRH).
1. 6
2. 5
3. 4
4. 3
For the given diagram which labeling and function is
correctly matched/described?
1. (a) Fovea Rods are densely packed.
2. (b) Blindspot No image formed.
3. (c) Choroid Coloured part of the eye which regulates diameter of pupil.
4. (d) Ciliary body No role in accommodation
Which of the following is not a correct combination of the hormone with its source organ and target organ?
Hormone |
Source organ |
Target organ |
|
1. |
Somatostatin |
Hypothalamus |
Adenohypophysis |
2. |
FSH |
Ovary |
Uterus |
3. |
TSH |
Adenohypophysis |
Thyroid |
4. |
ACTH |
Pituitary gland |
Adrenal cortex |
Read all statements carefully and identify the number of correct ones:
(a) Neural system provides an organised network of point-to-point connections for quick coordination.
(b) Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.
(c) Cerebral aqueduct passes through the midbrain.
(d) The hypothalamus contains centers that control respiration and gastric secretions.
1. One
2. Two
3. Three
4. Four
Consider the following four statements (a-d) and select the option which includes all the correct information:-
(a) Coronary Artery disease, (CAD) often referred to as Atherosclerosis
(b) Heart failure means when the heart muscle is suddenly damaged by an inadequate blood supply
(c) High blood pressure leads to heart disease and also affects vital organs like brain and kidney
(d) Angina occurs due to conditions that affect the blood flow
Options :
1. Statements (b), (c) and (d)
2. Statements (a), (b)
3. Statements (b), (d)
4. Statement (a), (c) and (d)
Which of the following group of animals are ammonotelic in nature?
1. Many bony fishes, amphibians, Insects.
2. Marine Fishes, amphibians, aquatic insects.
3. Mammals, birds, Reptiles.
4. Many bony fishes, aquatic amphibians, aquatic insects.
Reabsorption and secretion of major substances at different parts of the Nephron are shown in the given figure. In this figure A, B, C, D are :-
1. HCO , Nutrients, Urea, NaCl.
2. NaCl, Urea, H, HCO
3. NaCl, Urea, HCO , Ammonia.
4. HO, Urea, NaCl, HCO
Trachea divides into two primary bronchi at the levels of :
1. 7th thoracic vertebrae in the mid-thoracic cavity.
2. 5th lumbar vertebrae in the mid-thoracic cavity.
3. 5th thoracic vertebrae in the lower thoracic cavity.
4. 5th thoracic vertebrae in the mid-thoracic cavity.
The state of heart when it not pumping blood effective
enough to meet the needs of the body is called
1. CAD.
2. Atherosclerosis.
3. Angina.
4. Heart failure.
In the rest state, a subunit of troponin masks :-
1. Active binding sites for actin on the myosin
filaments.
2. Active binding sites for myosin on the myosin
filaments.
3. Active binding sites for myosin on the actin
filaments.
4. Actine binding sites for actin on the actin
filaments.
Contraction of muscle fibre takes place by the
sliding of :-
1. Thin filaments over the actin filaments.
2. Thick filaments over the thin filaments.
3. Thin filaments over the thick filaments.
4. Thick filaments over the myosin filaments.
How many vertebrochondral ribs are found in humans?
1. 12 pairs
2. 5 pairs
3. 3 pairs
4. 2 pairs
Read the following statements (A-D):-
(A) A neural signal reaching the neural muscular junction releases adrenalin.
(B) Many monomeric proteins called meromyosin constitute one thin filament.
(C) A complex protein troponin is distributed at irregular intervals on the tropomyosin.
(D) During shortening of muscle, the I-bands get reduced.
How many of the above statements are true?
1. Four
2. One
3. Three
4. Two
Match the following:-
(i) | Fibrous Joint | (a) | Between two adjacent vertebrae. |
(ii) | Cartilaginous Joint | (b) | Between humerus and pectoral girdle. |
(iii) | Pivot Joint | (c) | Sutures. |
(iv) | Ball and Socket Joint | (d) | Between atlas and axis. |
1. iv → (d), iii → (b), i → (c), ii → (a)
2. i → (a), ii → (c), iii → (d), iv → (b)
3. i → (c), ii → (a), iii → (d), iv → (b)
4. i → (a), ii → (d), iii → (b), iv → (c)
Restoration of resting potential of the membrane at the site of excitation is achieved by:-
1. Diffusion of K outside the membrane
2. Diffusion of Na outside the membrane
3. Diffusion of K inside the membrane
4. Diffusion of Na inside the membrane
Which of the following option gives the correct categorization of hormones according to their chemical nature?
A Steroid |
B Amino-acid derivative |
C Iodothyromines |
|
1. |
Epinephrine, nor-epinephrine |
Estradiol, progesterone |
Thyroxine |
2. |
Estradiol, progesterone |
Epinephrine, nor-epinephrine |
Thyroxine |
3. |
Estradiol, epinephrine |
Nor-epinephrine progesterone |
Thyroxine |
4. |
Estradiaol, pogesterone |
Thyroxine |
Epinephrine, nor-epinephrine |
Read the following four statements (a-d) and select the option which includes all correct ones only :-
(a) | Exchange of O2 and CO2 at alveoli and tissue occur by active transport. |
(b) | Long exposure to industrial dust leads to inflammation leading to fibrosis and thus causing serious lung damage. |
(c) | EICM and IICM are muscles actively involved in normal and forced breathing respectively. |
(d) | Spirometer is unable to find out the functional residual capacity and total lung capacity. |
1. b, c and d
2. b and d
3. a, b and d
4. a, b, c and d
Which of the following is not a part of the autonomic neural system?
1. Brain
2. Spinal cord
3. Ganglion
4. Skeletal Muscle
The ___________ integrates information received from the semicircular canals of the ear and the auditory system.
1. Cerebrum.
2. Cerebellum.
3. Medulla oblongata.
4. Thalamus.
How many of these contain sensory hair cells?
Eustechian tube, utricle, saccule, Semicircular
canals, scale media, scala vestibuli
1. 1
2. 3
3. 4
4. 2
Similarity between Inulin, Lecithin and Insulin is -
1. All are polymeric compound.
2. All are natural polypeptides.
3. All contains C,H,O and N.
4. None of these.
Which of the following can alter respiratory
mechanism?
1. Pneumotaxic centre in the pons region of the brain.
2. Chemosensitive area in the medulla.
3. Mid brain.
4. Both 1 and 2.
An absorption line of the lowest frequency in the transition of hydrogen spectra is
1. n=1 to n=2
2. n=3 to n=8
3. n=2 to n=1
4. n=8 to n=3
Density ratio of O2 and H2 is 16 : 1. The ratio of their r.m.s. velocities will be-
1. 4 : 1
2. 1 : 16
3. 1 : 4
4. 16 : 1
30 ml of 0.06 M solution of the protonated form of an anion acid methionine (H2A+) is treated with 0.09 M NaOH. Calculate pH after addition of 20 ml of base. pKa1, = 2.28 and pKa2 = 9.2.
1. 5.5
2. 5.74
3. 9.5
4. None
Sulphur burns according to the reaction
What volume of air, at 1 atm and 273 K, containing 21% oxygen by volume is required to completely burn sulphur present in 200 g of the sample?
(This sample contains 20% inert material which does not burn)
1. 23.52 litre
2. 320 litre
3. 112 litre
4. 533.33 litre
The vapour density of a volatile chloride of a metal is 95 and the specific heat of the metal is 0.13 cal/g. The equivalent mass of the metal will be:
1. 6 g
2. 12 g
3. 18 g
4. 24 g
Assuming no change in volume, calculate the minimum mass of NaCl (approx.) necessary to dissolve 0.01 mol AgCl in 100 L solution.
[Given
1. 15 kg
2. 21 kg
3. 10 kg
4. 19kg
At identical temperature and pressure, the rate of diffusion of hydrogen gas is times that of a hydrocarbon having molecular formula . What is the value of n?
1. 1
2. 4
3. 3
4. 8
For one mole of van der Waal's gas when b=0 and T=300 K, the PV vs. 1/V plot is shown below.
The value of the van der Waal's constant 'a' (atm. ) is-
1. 1.0
2. 4.5
3. 1.5
4. 3.0
The quantity that does not change for a sample of a gas in a sealed tight container when it is cooled from at constant volume is-
1. Average energy of the molecule
2. Pressure of the gas
3. Density of the gas
4. Average speed of the molecules
The maximum entropy of mixing occurs when hexane and heptane are mixed respectively in the proportion of -
1. 8.6 g and 10.0 g
2. 8.6 g and 8.6 g
3. 10.0 g and 8.6 g
4. 10.0 g and 10.0 g
If =82 kJ/mol. Bond energy of NN. N=N, O=O and N=O bonds is 946, 418, 498 and 607 kJ/mol respectively. Then the resonance energy of will be
1.
2.
3.
4.
For the reaction , the equivalent mass of is
1.
2.
3.
4. M
The entropy change in the isothermal reversible expansion of 2 moles of an ideal gas from 10 to 100 L at 300 K is
1.
2.
3.
4.
Given,
\(\begin{aligned}
& \mathrm{NO}(\mathrm{g})+\mathrm{O}_3(\mathrm{~g}) \rightarrow \mathrm{NO}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \\
& \Delta \mathrm{H}=-198.9 \mathrm{~kJ} / \mathrm{mol} \\
& \mathrm{O}_3(\mathrm{~g}) \rightarrow 3 / 2 \mathrm{O}_2(\mathrm{~g}) ; \Delta \mathrm{H}=-142.3 \mathrm{~kJ} / \mathrm{mol} \\
& \mathrm{O}_2(\mathrm{~g}) \rightarrow 2 \mathrm{O}(\mathrm{g}) ; \Delta \mathrm{H}=+495.0 \mathrm{~kJ} / \mathrm{mol}
\end{aligned}\)
The enthalpy change (∆H) for the following reaction NO(g) + O(g) → NO2(g) is:
1. -304.1 kJ/mol
2. +304.1 kJ/mol
3. -403.1 kJ/mol
4. +403.1 kJ/mol
The oxidation number of S in is:
1. +2
2. +4
3. +6
4. +7
A bottle of solution contains 70% (w/w) acid. If the density of the solution is 1.54 g , the volume of the solution required to prepare 1 L of 1 N solution is
1. 90mL
2. 45 mL
3. 30 mL
4. 23 mL
Photons of wavelength 4000 are used to break molecules. The percentage of energy converted to the kinetic energy of atoms will be :
(bond dissociation energy of the molecule is 246.5 kJ/mol)
1. 12%
2. 8%
3. 26%
4. 17%
The wavelength of the spectral line obtained in the spectrum of
when the transition takes place between levels whose sum is 4 and the difference is 2, will be:
1. 11.4 x cm
2. 1.14 x cm
3. 0.114 x cm
4. 1.14 x cm
The second ionization potential of Be is 17.98 eV. If the outermost electron in is assumed to move in a spherical orbit with a central field of effective nuclear charge () consisting of nucleus and other electrons, by how many units of charge is the nucleus shielded by other electrons? [Energy of electron in the first orbit of H-atom = —13.6 eV]
1. 2.0 unit
2. 0.5 unit
3. 1.0 unit
4. 1.7 unit
In a subshell, if the number of radial nodes is two times the number of angular nodes, then the minimum possible value of the principal quantum number (n) is:
[angular nodes are non-zero)
1. | 1 | 2. | 2 |
3. | 3 | 4. | 4 |
Among the following molecules,
(i)
(ii)
(iii)
Those having the same number of lone pairs on Xe are
1. (i) and (ii) only
2. (i) and (iii) only
3. (ii) and (iii) only
4. (i), (ii) and (iii) only
The correct order of hydration energy of following metal ions is/are
1. Be2+>Mg2+
2. Be2+>Li+
3. Na+<Li+
4. All of these
The equilibrium constant of a 2 electron redox reaction at 298 K is 3.8 x . The cell potential Eo (in V) and the free energy change ∆Go (in kJ mol-1 ) for this equilibrium respectively, are -
1. | -0.071, -13.8 | 2. | -0.071, 13.8 |
3. | 0.71, -13.8 | 4. | 0.071, -13.8 |
Consider the reaction: carried out at constant temperature and
pressure. If ∆H and ∆U are the enthalpy and internal energy changes for the
reaction. The correct expressions among the following is -
1. ∆H = 0
2. ∆H = ∆U
3. ∆H <∆U
4. ∆H > ∆U
The solubility product of a salt having general formula MX2, in water is: . The concentration of M2+ ions in the aqueous solution of the salt is
1.
2.
3.
4.
Two solutions of a substance (non electrolyte) are mixed in the following manner.
480 ml of 1.5 M first solution + 520 mL of 1.2 M second solution. What is the molarity of the final mixture?
1. 1.20 M
2. 1.50 M
3. 1.344 M
4. 2.70 M
Hydrogen ion concentration in mol / L in a solution of pH = 5.4 will be
1.
2.
3.
4.
The number and type of bonds between two carbon atoms in calcium carbide are
1. One sigma, one pi
2. One sigma, two pi
3. Two sigma, one pi
4. Two sigma, two pi
An amount of solid NH4HS is placed in a flask already containing ammonia gas at a certain temperature and 0.50 atm. Pressure. Ammonium hydrogen sulphide decomposes to yield NH3 and H2S gases in the flask. When the decomposition reaction reaches equilibrium, the total pressure in the flask rises to 0.84 atm. The equilibrium constant for NH4HS decomposition at this temperature is
1. 0.30
2. 0.18
3. 0.17
4. 0.11
Which one of the following molecules is expected to exhibit diamagnetic behaviour
a.
b.
c.
d.
1. a,b
2. a,c
3.b,c,d
4.a,b,d
A piston filled with 0.04 mol of an ideal gas expands reversibly from 50.0 mL to 375 mL at a constant temperature of 37.0ºC. As it does so, it absorbs 208 J of heat. The values of q and w for the process will be-
(R = 8.314 J/mol K) (ln 7.5 = 2.01)
1. | q = +208 J, w = -208 J | 2. | q = -208 J, w = -208 J |
3. | q = -208 J, w = + 208 J | 4. | q = +208 J, w = + 208 J |
Which of the following statements is false?
1. | V2+ < Cr2+ < Mn2+ < Fe2+ : Paramagnetic behaviour |
2. | Ni2+ < Co2+ < Fe2+ < Mn2+ : Ionic size |
3. | Co3+ < Fe3+ < Cr3+ < Sc3+ : Stability in aqueous solution |
4. | Sc < Ti < Cr < Mn : Number of oxidation states |
Among the following species, the H–X–H angle (X=B,N or P) follows the order
1.
2.
3.
4.
The ionic radii of Na+, F–, O2–, N3– follow the order
1. O2– > F– > Na+ > N3–
2. N3– > Na+ > F– > O2–
3. N3– > O2– > F– > Na+
4. Na+ > F– > O2– > N3–
Consider the following reaction,
\(\small{\mathrm {xMnO_4^−+yC_2O_4^{2−}+zH^+→xMn^{2+}+2yCO_2+{z\over2} H_2O}}\)
The values of x, y, and z in the reaction are, respectively :
1. 5, 2 and 16
2. 2, 5 and 8
3. 2, 5 and 16
4. 5, 2 and 8
Given :
Based on the above thermochemical equations, the value of at 298 K for the reaction
1. 85.2 kJ/mol
2. 15.2 kJ/mol
3. -74.8 kJ/mol
4. 74.8 kJ/mol
The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%) ; and Nitrogen (2.6%). The weight which a 75 kg person would gain if all atoms are replaced by atoms is :
1. 37.5 Kg
2. 7.5 Kg
3. 10 Kg
4. 15 Kg
Given :
Among the following, the strongest reducing agent is :
A gaseous hydrocarbon gives upon combustion 0.72 g of water and 3.08 g. of .The empirical formula of the hydrocarbon is :
1.
2.
3.
4.
A pair in which both species are not likely to exist is:
1. | \(H^+_2,He^{2-}_2\) | 2. | \(H^-_2,He^{2+}_2\) |
3. | \(H^{2+}_2,He_2\) | 4. | \(H^-_2,He^{2+}_2\) |
Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se, and Ar?
1. Ca < S < Ba < Se < Ar
2. S < Se < Ca < Ba < Ar
3. Ba < Ca < Se < S < Ar
4. Ca < Ba < S < Se < Ar
How many litres of water must be added to 1 litre an aqueous solution of HCl with a pH of 1 to create an aqueous solution with pH of 2 ?
1. 0.1 L
2. 0.9 L
3. 2.0 L
4. 9.0 L
The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of will be :
1. -2.55 eV
2. -5.1 eV
3. -10.2 eV
4. +2.55 eV
The outermost electronic configuration of the most electronegative element is
1.
2.
3.
4.
A block of mass \(4~\text{kg}\) hangs from a spring of spring constant \(k = 400~\text{N/m}\). The block is pulled down through \(15~\text{cm}\) below the equilibrium position and released. What is its kinetic energy when the block is \(10~\text{cm}\) below the equilibrium position? [Ignore gravity]
1. \(5~\text{J}\)
2. \(2.5~\text{J}\)
3. \(1~\text{J}\)
4. \(1.9~\text{J}\)
A metre stick is swinging in vertical plane about a horizontal axis passing through its one end , undergoes small oscillation of frequency f0. If the bottom half of the stick were cut off, then its new frequency of small oscillation would become -
1.
2.
3.
4.
Two springs, of force constants k1 and k2 are connected to a mass m as shown in the figure. The frequency of oscillation of the mass is f. If both k1 and k2 are made four times their original values, the frequency of oscillation will become:
1. | 2f | 2. | f/2 |
3. | f/4 | 4. | 4f |
A travelling wave in a stretched string is described by the equation . The maximum particle velocity is:
1.
2.
3.
4. x/t
Two pulses in a stretched string whose centers are initially 8 cm apart are moving towards each other as shown in the figure. The speed of each pulse is 2 cm/s. After 2 seconds , the total energy of the pulses will be
1. zero
2. purely kinetic
3. purely potential
4. partly kinetic and partly potential
The speed of sound in nitrogen gas compared to that in helium gas at 300 K is:
1.
2.
3.
4.
A particle is executing SHM according to y = a cos. Then, which of the following graphs represent variations of potential energy?
1. I and III
2. II and IV
3. II and III
4. I and IV
In which of the following case frequency of
spring-block system will be same as
1. if placed on accelerated elevator
2. if dipped in non-viscous liquid completely
3. both (1) and (2)
4. Neither (1) nor (2)
A simple pendulum of mass m swings about point B between extreme positions A and C. Net force acting on the bob at these three points is correctly shown by:
1. | 2. | ||
3. | 4. |
A triangular transverse wave is propagating in the positive X-direction. The velocity of P at this instant will be:
1. vertically upward.
2. vertically downward.
3. at rest.
4. cannot be determined.
The mathematical forms for three sinusoidal traveling waves are given by:
Wave 1 : y(x,t) = (2cm) sin(3x–6t)
Wave 2 : y(x,t) = (3cm) sin(4x–12t)
Wave 3 : y(x,t) = (4cm) sin(5x–11t)
where x is in meters and t is in seconds. Of these waves :
1. | Wave 1 has the highest wave speed as well as the maximum transverse string speed. |
2. | Wave 2 has the highest wave speed, while Wave 1 has the maximum transverse string speed. |
3. | Wave 3 has the highest wave speed as well as the maximum transverse string speed. |
4. | Wave 2 has the highest wave speed, while Wave 3 has the maximum transverse string speed. |
A string of length 3 m and a linear mass density of 0.0025 kg/m is fixed at both ends. One of its resonance frequencies is 252 Hz. The next higher resonance frequency is 336 Hz. Then the fundamental frequency will be:
1. 84 Hz
2. 63 Hz
3. 126 Hz
4. 168 Hz
The pressure of water in a water pipe when tap is opened and closed are respectively \(3\times10^5\) Nm–2 and \(3.5\times10^5\) Nm–2. With open tap, the velocity of water flowing is:
1. \(10\) ms–1
2. \(5\) ms–1
3. \(20\) ms–1
4. \(15\) ms–1
Two soap bubbles of radii R and r come in contact. R is more than r. Radius of curvature of common surface is
1.
2.
3.
4.
A cubical block of wood of the side \(10\) cm floats at the interface between oil and water with its lower surface horizontal and \(4\) cm below the interface. The density of oil is \(0.6\) g cm–3. The mass of block is:
1. \(706\) g
2. \(607\) g
3. \(760\) g
4. \(670\) g
A mercury-filled U–tube arrangement is connected to a bulb containing a gas. Atmospheric pressure is \(1.012 \times 10^5\) Pa and \(\mathrm{H}=0.05\) m.
Then:
1. | gauge pressure at \(\mathrm{R}\) is nil. |
2. | gauge pressure at \(\mathrm{R}\) is \(6.56 \times10^3\) Pa. |
3. | gauge pressure at \(\mathrm{R}\) is \(1.08 \times10^5\) Pa. |
4. | pressure at \(\mathrm{R},\) \(\mathrm{Q},\) and inside the bulb is the same. |
A diver is \(10\) m below the surface of the water. The approximate pressure experienced by the diver is:
1. \(10^5\) Pa
2. \(2\times10^5\) Pa
3. \(3\times10^5\) Pa
4. \(4\times 10^5\) Pa
Three rods made of the same material and having the same cross-section have been joined as shown . Each rod is of the same length. The left and right ends are kept at 0C and 90C respectively. The temperature of the junction of the three rods
1. 45C
2. 60C
3. 30C
4. 20C
A substance is in the solid form at 0C. The amount of heat added to this substance and its temperature are plotted in the following graph. If the relative specific heat capacity of the solid substance is 0.5, the mass of the substance is-
(Specific heat capacity of water = 1000 cal kg-1 K-1 )
1. 0.02 kg
2. 2 kg
3. 0.04 kg
4. 0.05 kg
Some water at \(0^{\circ}\mathrm{C}\) is placed in a large insulated enclosure (vessel). The water vapour formed is pumped out continuously. What fraction of the water will eventually freeze, if the latent heat of vaporization is seven times the latent heat of fusion?
1. | 7/8 | 2. | 8/7 |
3. | 3/8 | 4. | 5/8 |
Find the coefficient of volume expansion for an ideal gas at constant pressure.
1.
2.
3.
4.
During an experiment, an ideal gas is found to obey an additional law VP2 = constant. The gas is initially at temperature T and volume V. What will be the temperature of the gas when it expands to a volume 2V?
1.
2.
3.
4.
We have two vessels of equal volume, one filled with hydrogen and the other with equal mass of helium. The common temperature is \(27^{\circ}\mathrm{C}\) . What is the relative number of molecules in the two vessels?
1. \(\frac{n_H}{n_{He}} = \frac{1}{1}\)
2. \(\frac{n_H}{n_{He}} = \frac{5}{1}\)
3. \(\frac{n_H}{n_{He}} = \frac{2}{1}\)
4. \(\frac{n_H}{n_{He}} = \frac{3}{1}\)
The pressure of a monoatomic gas increases linearly from N/m2 to N/m2 when its volume increases from 0.2 m3 to 0.5 m3. The amount of heat supplied is:
1.
2.
3.
4.
Two cylinders \(A\) and \(B\) fitted with pistons contain equal amounts of an ideal diatomic gas at \(300\) K. The piston \(A\) is free to move, while that of \(B\) is held fixed. The same amount of heat is given to the gas in each cylinder. If the rise in temperature of the gas in \(A\) is \(30\) K, then the rise in temperature of the gas in \(B\) is:
1. \(30\) K
2. \(18\) K
3. \(50\) K
4. \(42\) K
The volume \(V\) versus temperature \(T\) graph for a certain amount of a perfect gas at two pressures \(\mathrm{P}_1\) and
\(\mathrm{P}_2\) are shown in the figure. Here:
1. | \(\mathrm{P}_1<\mathrm{P}_2\) |
2. | \(\mathrm{P}_1>\mathrm{P}_2\) |
3. | \(\mathrm{P}_1=\mathrm{P}_2\) |
4. | Pressures can’t be related |
The following figure shows two air-filled
bulbs connected by a U-tube partly filled with
alcohol. What happens to the levels of alcohol
in the limbs X and Y when an electric bulb
placed midway between the bulbs is lighted?
1. The level of alcohol in limb X falls while
that in limb Y rises
2. The level of alcohol in limb X rises while
that in limb Y falls
3. The level of alcohol falls in both limbs
4. There is no change in the levels of alcohol
in the two limbs
A liquid drop at temperature T, isolated from its surroundings, breaks into a number of droplets. The temperature of the droplets will be–
1. | equal to T |
2. | greater than T |
3. | less than T |
4. | either (1), (2) or (3) depending on the surface tension of the liquid. |
Find the rate of flow of glycerin of density 1.25 × 103 kg/m3 through the conical section of a pipe, if the radii of its ends are 0.1 m and 0.04 m and the pressure drop across its length is 10 N/m2.
1. 3.14 × 10–4 m3/s
2. 6.28 × 10–4 m3/s
3. 12.56 × 10–4 m3/s
4. 1.57 × 10–4 m3/s
Water flows through a frictionless duct with a cross-section varying as shown in the figure. Pressure \(P\) at points along the axis is represented by:
1. | 2. | ||
3. | 4. |
The graph AB shown in figure is a plot of the temperature of a body in degree Celsius and degree Fahrenheit. Then,
1. | slope of line AB is \(9/5\) |
2. | slope of line AB is \(5/9\) |
3. | slope of line AB is \(1/9\) |
4. | slope of line AB is \(3/9\) |
At a pressure of 24 × 105 dyne/cm2, the volume of O2 is 10 litre and mass is 20g. The rms velocity will be:
1. | 800 m/s | 2. | 400 m/s |
3. | 600 m/s | 4. | Data is incomplete |
A horizontal cylinder has two sections of unequal cross-sections in which two pistons, A and B, can move freely. The pistons are joined by a string. Some gas is trapped between the pistons. If this gas is heated, the pistons will:
1. | move to the left. |
2. | move to the right. |
3. | remain stationary. |
4. | move either to the left or to the right depending on the initial pressure of the gas. |
In the P-V diagram shown, the gas does 5 J of work in the isothermal process ab and 4 J in the adiabatic process bc. What will be the change in internal energy of the gas in the straight path from c to a?
1. 9J
2. 1 J
3. 4 J
4. 5 J
ABCA is a cyclic process. Its P-V graph would be:
1. | 2. | ||
3. | 4. |
When \(x\) amount of heat is given to a gas at constant pressure, it performs \(\frac{x}{3}\) amount of work. The average number of degrees of freedom per molecule of the gas is:
1. \(3\)
2. \(4\)
3. \(5\)
4. \(6\)
The shape of a wave propagating in the positive x or negative x direction is given by y = at t = 0 and y = at t = 1 s where x and y are in meters. The shape of the wave disturbance does not change during propagation, then the velocity of the wave is -
1. 1 m/s in positive x direction
2. 1 m/s in negative x direction
3. m/s in positive x direction
4. m/s in negative x direction
Kinetic energy of a particle executing simple harmonic motion in straight line is \(pv^2\) and potential energy is \(qx^2,\) where \(v\) is speed at distance \(x\) from the mean position. The time period of the SHM is given by the expression:
1.
2.
3.
4.
Two pendulums (with the same angular amplitudes) of time periods 3s and 7s respectively start oscillating simultaneously from two opposite extreme positions with the same angular amplitudes. After how much time they will be in phase?
1.
2.
3.
4.
An observer moving at a velocity of 20 m/s is moving away from a source moving at a speed of 10 m/s towards the observer.
If the frequency of the source is 'f', then find the frequency observed by the observer is: ( )
1.
2.
3.
4. f
In each of the following questions, Match column I and column II and select the correct match out of the four given choices-
Column I Column II
(1) (P)
(2) (Q)
(3) (R)
(4) (S)
1. 1-P, 2-Q, 3-R, 4-S
2. 1-Q, 2-P, 3-R, 4-S
3. 1-Q, 2-P, 3-s, 4-R
4. 1-P, 2-Q, 3-S, 4-R
Three liquids of densities \(d,\) \(2d\) and \(3d\) are mixed in equal proportions of weights. The relative density of the mixture is:
1. | \(11d \over 7\) | 2. | \(18d \over 11\) |
3. | \(13d \over 9\) | 4. | \(23d \over 18\) |
If the ratio of specific heat of a gas at constant pressure to that at constant volume is , the change in internal energy of a mass of gas, when the volume changes from V to 2V at constant pressure, P is:
1.
2. PV
3.
4.
One mole of a monoatomic ideal gas is mixed with one mole of a diatomic ideal gas. The molar specific heat of the mixture at constant volume is:
1. \(8\)
2. \(\frac{3R}{2}\)
3. \(2R\)
4. \(2.5R\)
Two superposing waves are represented by the following equations:
\({\mathrm{y}_1=5 \sin 2 \pi(10 \mathrm{t}-0.1 \mathrm{x}), \mathrm{y}_2=10 \sin 2 \pi(10 \mathrm{t}-0.1 \mathrm{x}).}\)
Ratio of intensities will be:
1. 1
2. 9
3. 4
4. 16