Heterotrophic, eukaryotic, multicellular organisms lacking a cell wall are included in the kingdom.
1. Protista
2. Fungi
3. Plantae
4. Animalia
The region of part of root that increases the surface area for water absorption is
1. Root cap
2. Zone of elongation
3. Meristematic zone
4. Root hair
The conjuctive tissues lie between the
1. Xylem and phloem
2. Pericycle and Endodermis
3. Epidermis and endodermis
4. Epidermis and hypodermis
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
Select the incorrect statement with respect to imbibition
1. It is diffusion process.
2. Affinity between the adsorbent and the liquid is not a pre-requisite.
3. It involves both capillary action and adsorption
4. Phycocolloids are best imbibants.
Which if the following statement is not true regarding the plants?
1. They show Kranz anatomy.
2. Decarboxylation process in bundle sheath cells.
3. Granal chloroplast is present in bundle sheath cells
4. PEPcase enzyme activity occurs in mesophyll cells.
The enzymes of Krebs cycle where are produced are
1. Isocitrate dehydrogenase succinate dehydrogenase and malic dehydrogenase.
2. Succinate thiokinase, succinate dehydrogenase and aconitase
3. Isocitrate dehydrogenase, dehydrogenase, malic dehydrogenase
4. Isocitrate dehydrogenase, dehydrogenase and succinate dehydrogenase.
Nissl's granules are present in which part of a neuron?
1. Cyton
2. Synaptic knobs
3. Axon
4. Nerve endings
The main function of bile is to
1. Eliminate the waste products
2. emulsify the fats
3. Digest proteins by enzymatic activity
4. Regulate the digestion process
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.
Perisperm differs from endosperm in________
1. Having no reserve food
2. Being a diploid tissue
3. Its formation by fusion of secondary nucleus with several sperms
4. Being a haploid tissue
Cystic fibrosis, Myotonic dystrophy and Thalassemia are
1. Chromosomal disorders
2. Autosomal recessive disorders
3. Mendelian disorders
4. Autosomal dominant disorders
Packaging of DNA helix
1. Involves polyamines in eukaryotes
2. Occurs with the help of NHC proteins only.
3. Requires acidic proteins that help in coiling of DNA in prokaryotes.
4. Is more complex in eukaryotes than prokaryotes.
In the technique of DNA fingerprinting digestion of DNA is followed by
1. Electrophoresis
2. Hybridisation
3. Denaturation
4. Southern blotting
What are flocs?
1. Masses of anaerobic bacteria
2. Masses of aerobic fungi only
3. Masses of anaerobic bacteria and fungi
4. Masses of aerobic bacteria associated with fungal filaments
Consider the following statement and select correct set with respect to Global warming
a. El Nino effect
b. Cooling of stratosphere and earth surface
c. Shifting of climatic zones
d. Snow blindness
e. Impairment of hearing
f. Excessive deposition of ice at poles
g. Rise in sea level
h. Increases in eutrophication
1. a, c, e, g & h
2. a, c, d, e, f & g
3. a, b, c, d, f & h
4. a, c, g & h
Which of the following is the most appropriate statement defining infertility?
1. Couple is unable to produce children inspite of unprotected sexual co-habitation even after two years.
2. It is the inability to produce a viable offspring and is always due to defects abnormalities in the female partner
3. Infertility is due to defects abnormalities in the female partner
4. Infertility cannot be helped by ART.
Which of the following statement is not correct regarding malarial infection?
1. Plasmodium enters the human body as sporozoites through the bite of freshly moulted female Anopheles mosquito
2. High fever recurring every three to four days
3. Sporozoites initially multiple within the liver cells and then attack the RBCs resulting in their rupture.
4. When a female Anopheles mosquito bites an infected person, these parasites enter the mosquito's body and undergo further development.
Which is the incorrect statement regarding fungi?
1. In wheat rust causing agent is Puccinia.
2. Penicillium is a source of antibiotics.
3. The cell wall of fungi are composed of peptidoglycan.
4. Fungi prefer to grow in warm and humid places.
In Rhizophora, roots are modified to form
1. Tuberous roots
2. Pneumatophores
3. Stilt roots
4. Storage roots
In plants, the tonoplast facilitates the transport of a number of ions and other materials
(1) Against concentration gradient into vacuole
(2) Along concentration gradient into vacuole
(3) Along concentration gradient into gas vacuoles
(4) Against concentration gradient in contractile vacuole
The osmotic concentration of glomerular filtrate is the highest at the bottom of the U-shaped Henle’s loop. It is about ____________ mOsmL-1
1. 300
2. 600
3. 900
4. 1200
Read the following statements:
(a) part of ATPase is associated with breakdown of proton gradient
(b) A H-carrier contributes in creation of proton gradient
(c) Movement of electrons in ETS is coupled to pumping of protons into the lumen
(d) Formation of NADPH + is related with the creation of proton gradient
How many of the above statements are correct?
1. Two
2. One
3. Four
4. Three
What is the net gain in a Krebs cycle?
1.
2.
3.
4.
Match Column - I with Column - II and choose the correct option
Column - I Column - II
a.A vector of disease (i) Bombyx
b.A gregarious pest (ii) Limulus
c.A living fossil (iii) Locusta
d.An economically (iv) Culex insect
important
1. a(iii), b(ii), c(i), d(iv)
2. a(i), b(ii), c(iii), d(iv)
3. a(ii), b(iv), c(iii), d(i)
4. a(iv), b(iii), c(ii), d(i)
Which of the following muscles act involuntarily?
(a) Striated muscles
(b) Smooth muscles
(c) Cardiac muscles
(d) Skeletal muscles
1. (a) & (b)
2. (b) & (c)
3. (c) & (d)
4. (a) & (d)
The main enzymes present in the gastric juice are
(1) Trypsin, pepsin and lipase
(2) Pepsin, amylase and trypsin
(3) Pepsin, rennin and carboxypeptidase
(4) Pepsin, lipase and rennin
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
Which one is not the character of skeletal muscle?
1. Voluntary inaction
2. Associated with bones
3. Involuntary in actions
4. Striated muscle
Choose the incorrect option for given below organism
1. Scourge of the water bodies
2. Reproduction through offset
3. Found in running water
4. Drains oxygen from water
The hilum is a scar on the
1. Seed, where micropyle was present
2. Seed, where funicle was attached
3. Fruit, where it was attached to pedicel
4. Fruit, where style was present
A normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny?
1. 25%
2. 50%
3. 100%
4. 74%
Which of the following statement is not true of two genes that show 50% recombination frequency?
1. The genes are tightly linked
2. The genes show independent assortment
3. If the genes are present on the same chromosome, they undergo more than one crossovers in every meiosis
4. The genes may be on different chromosomes
What is incorrect for UTR?
1. Present in between the translational unit in mRNA
2. Not recognised by any tRNA
3. Required for efficient translation process
4. Provide stability to mRNA
Select the incorrect statement(s) (with respect to semi-dwarf varieties of wheat)
1. Developed by Norman E.Borlaug
2. Developed at International Centre for Wheat and Maize Improvement in Mexico
3. These varieties were derived from IR-8
4. Responsible for green revolution
In a sewage treatment plant, primary treatment is
1. Physical process which involves sedimentation only
2. Physical process which involves both filtration and sedimentation
3. Biological process which involves formation of primary sludge and effluent
4. Biological process which involves both filtration and sedimentation
'Resource partitioning' is an important mechanism which promotes
1. Competitive release
2. Co-existence
3. Competitive exclusion
4. Antibiosis
Ecological succession is _________ and __________ change in species composition
1. Orderly and sequential
2. Unpredictable and orderly
3. Gradual and unsequential
4. Sequential and disorderly
Which one of the following shows maximum genetic diversity in India?
1. Mango
2. Groundnut
3. Rice
4. Maize
Recognizing the deleterious effects of ozone depletion an international treaty known as _______ was signed at ___________
1. Montreal Protocol, Canada
2. Kyoto Protocol, Brazil
3. Earth Summit, Montreal
4. World Summit, South Africa
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)
Natural selection in which more individuals acquire peripheral character value at both the ends of the distribution curve is
1. Stabilising natural selection
2. Disruptive natural selection
3. Directional natural selection
4. The curve never shows the formation of two peaks
Which of the following steps is/are catalysed by Taq polymerase in a PCR?
1. Denaturation of template DNA
2. Annealing of primers to template DNA
3. Extension of primer end on template DNA
4. All of these
Which of the following is living fossil?
(1) Gnetum
(2) Cycas
(3) Ginkgo
(4) Both (2) and (3)
Choose the option which comprises of oviparous animals
1. Ostrich, eagle, whale
2. Bat, pigeon, crow
3. Parrot, vulture, sparrow
4. Kite, platypus, kangaroo
The intrafascicular cambium
1. is a simple permanent tissue
2. is a meristematic tissue
3. is a complex permanent tissue
4. is secondary meristem
If the sequence of bases in one of the DNA strand is AGGAG AA, then the sequence of bases in the other complementary strand of DNA would be
1. CCTTCTT
2. TCTCTCC
3. TCCTCTT
4. CCTCTCT
Adenosine Triphosphate (ATP) liberates high energy by the breakdown of
1. Glycosidic bond
2. Hydrogen bond
3. Phosphate bond
4. Both 1 and 3
When beet root cylinders are washed and then placed in cold water anthocyanin does not come out. This indicates that most likely the plasma membrane is:
(1) Permeable to anthocyanin
(2) Dead structure
(3) Differentially permeable to anthocyanin
(4) Impermeable to anthocyanin
In the presence of Ca2+ channel blockers, which of the following will be true?
Minerals involved in the photooxidation of water are
(1) Mn, Cl
(2) Fe, Mn
(3) Mn, Fe
(4) K, Mg
An enzyme not used in Krebs cycle is
1. Aconitase
2. Decarboxylase
3. Fumarase
4. Aldolase
Vernalisation stimulates flowering in
1. Zamikand
2. Turmeric
3. Carrot
4. Ginger
One hormone hastens maturity period in juvenile conifers, a second hormone controls xylem differentiation, while the third hormone increases the tolerance of plants to various stresses. They are respectively:
1. Gibberellin, Auxin, Ethylene
2. Auxin, Gibberellin, Cytokinin
3. Gibberellin, Auxin, ABA
4. Auxin, Gibberellin, ABA
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
Select true statement
1. In fishes kidney excrete uric acid
2. Ammonia is 100,000 times less toxic than urea
3. Protonephridia are the excretory structure in planaria
4. Most terrestrial reptiles excrete ammonia
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
Which is an incorrect statement?
I. Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad.
II. The pollen grain represent male gametophyte
III. Pollen grains are usually triangular and 10-15 um in diameter.
IV. Sporopollenin is one of the most resistant organic materials which can be destroyed only by strong acids and alkali.
1. I, II are incorrect but III, IV are correct
2. III, IV are incorrect but I, II are correct
3. I, III are incorrect but II, IV are correct
4. II, IV are correct but I, III are incorrect
During coitus the human male ejaculates about
1. 200 to 400 million sperms
2. 100 to 200 million sperms
3. 200 to 300 sperms
4. 200 to 300 billion sperms
Which amino acid is substituted in Sickle cell anaemia?
1. Glutamic acid by valine in -chain
2. Glutamic acid by valine in -chain
3. Valine by glutamic acid in -chain
4. Valine by glutamic acid in -chain
One of the following symptoms pertain to Addison’s disease
1. Low plasma Na+, high plasma K+, increased urinary Na+, low blood sugar, vomiting, nausea and diarrhoea
2. High blood sugar, obesity, wasting of limb muscles, fall in plasma K+, high blood Na+ , rise in blood volume and high blood pressure
3. Stunted growth, retarded sexual development, mental backwardness
4. Increase of heart beat, rise in blood pressure, nervousness, bulging eyes, warm skin
Which of the following enzymes is used in the case of fungus to cause the release of DNA along with other macromolecules?
1. Lysozyme
2. Cellulose
3. Chitinase
4. Amylase
To ciliated columnar epithelial cells in humans are known to occur in
1. Fallopian tubes and urethra
2. Eustachian tube and stomach lining
3. Bronchioles and Fallopian tubes
4. Bile duct and oesophagus
Which of the following is not an invasive species?
1. Parthenium hysterophorus
2. Ocimum sanctum
3. Lantana Camara
4. Eicchornia crassipes
One of the following is correct sequence of carbohydrates in the order of increasing complexity of chemical structure
1. Sucrose, starch, oligosaccharide, maltose, triose
2. Triose, maltose, sucrose, oligosaccharide, starch
3. Triose, glucose, maltose, oligosaccharide, starch
4. Oligosaccharide, tiose, starch, sucrose, maltose
Select the correct statement:
1. | Cholera, typhoid, tetanus are well-known diseases caused by viruses. |
2. | Dinoflagellates, euglenoids and slime moulds are placed under kingdom Monera |
3. | Members of kingdom Protista are primarily aquatic |
4. | Dinoflagellates are the chief 'producers' in the oceans |
In gymnosperms, the ovule is naked because
1. Ovary wall is absent
2. Integuments are absent
3. Perianth is absent
4. Nucellus is absent
Which of the following set of animals belong the phylum hemichordate?
1. Balanoglossus, Saccoglossus
2. Salpa, Doliolum
3. Petromyzon, Myxine
4. Dentalium, Chaetopleura
In a dicot stem, the interfascicular cambium strip arises
1. Between xylem and phloem
2. From medullary rays
3. From pith
4. From pericycle
The main arena of cellular activities in plant and animal cells is
1. Cell membrane
2. Mitochondria
3. Cytoplasm
4. Ribosome
If egg of an organism has 10 pg of DNA in its nucleus. How much DNA would a diploid cell of same organism have in phase of meiosis?
1. 10 pg
2. 5 pg
3. 20 pg
4. 40 pg
Major event that occurs during anaphase of mitosis which brings about equal distribution of chromosomes is:
1. Condensation of chromatin
2. Replication of genetic material
3. Splitting of centromere
4. Pairing of homologous chromosomes
Ethylene accelerates abscission in flowers and fruits of
(1) Cotton
(2) Cherry
(3) Walnut
(4) All of these
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
Which one influences the activity of the kidney?
1. Vasopressin
2. Thyroxine
3. Vasopressin and aldosterone
4. Gonadotrophin
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
Which of the statement is incorrect with respect to the melatonin hormone?
1. Regulate diurnal variation
2. Influence metabolism
3. Secreted by pineal body
4. Non-influence pigmentation
Morula stage is related to:
1. 8 -16 celled
2. After the fertilization stage
3. Before the blastocyst stage
4. All of these
Female heterogamety found in :-
1. Birds
2. Drosophila
3. Human
4. Honey bee
If an enzyme called beta-galactosidase is synthesized by E. coli, it is used to catalyze the hydrolysis of a disaccharide, lactose into:
1. Fructose
2. Galactose
3. Glucose
4. Both 2 and 3
Which of the following statements is incorrect with respect to the Histology of the alimentary canal?
1. Serosa is the outermost layer made up of a thin mesothelium with some connective tissue.
2. Muscularis layer is formed by smooth muscles usually arranged into an inner longitudinal layer and an outer circular layer.
3. Submucosal layer is formed of loose connective tissue.
4. An oblique muscle layer may be present in stomach.
Which of the following disease is caused by viruses in plants?
1. Brown rust of wheat
2. Turnip mosaic
3. Red rot of sugarcane
4. Late blight of potato
Which of the following is not a method of introducing alien DNA into host cells?
1. Microinjection
2. Heat shock method
3. Being placed along with the cell into a gene gun
4. Gel electrophoresis
Transgenic animals are those which have
1. Foreign DNA in some of its cells
2. Foreign DNA in all its cells
3. Foreign RNA in all its cells
4. DNA and RNA both in the cells
Which of the following statement about Bacillus thuringiensis are correct?
A. One of the toxin produced by the bacteria is thurioside, which is active against different groups in insect larve.
B. The toxin accumulates inside the bacteria during sporulation
C. Upon ingestion by susceptible insects they are converted into active form and kill them by inhibition of ion transport in the midgut
D. The proteins encoded by the gene cry II Ab control corn borer
1. B only
2. A and B
3. A, B and C
4. A,B,C and D
Smaller animals tend to lose body heat very fast as compared to larger animals because they have
(1) Higher surface to volume ratio
(2) Lower surface to volume ratio
(3) Equal values of surface and volume
(4) Very low BMR (basal metabolic rate)
Bio-prospecting is exploring molecular, genetic and species-level diversity for products of
1. Ecosystem services
2. Economic benefits
3. Aesthetic pleasures
4. Both 1 and 3
“When we conserve and protect the whole ecosystem, its biodiversity at all levels in protected.” This approach includes all of the following, except
1. Seed bank
2. Biosphere reserves
3. National parks
4. Sanctuaries
An electron is located with an uncertainty equal to its uncertainty in its momentum. What will be its uncertainty in velocity (symbols have usual meaning)
1.
2.
3.
4. Not possible
An aqueous solution of a protein has an osmotic pressure of 3.8 mm of Hg at temperature of 300 K. If concentration of protein is (w/v )then calculate molecular mass of protein.
1. 2000
2. 20000
3. 200
4. 1000
Which of the following reactions is a pseudo first order reaction?
1.
2.
3.
4.
In III A group, TI (thalium) shows +1 oxidation state while other members show +3 oxidation state, why?
(1) Presence of Ione electron in TI
(2) Inert pair effect
(3) Large ionic radius of TI ion
(4) None of the above
During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are
(1) Fe and Ni
(2) Ag and Au
(3) Pb and Zn
(4) Se and Af
The major product in the above-mentioned reaction is:
1. | |
2. | |
3. | |
4. |
Which of the following statement is true in aqueous ethanol?
(1) is a stronger base & more nucleophilic than
(2) is a stronger base but is less nucleophilic than
(3) is a weaker base but is more nucleophilic than
(4) is a weaker base and less nucleophilic than
The temperature at which real gases obey the ideal gas laws over a wide range of low pressure is called:
1. Critical temperature
2. Inversion temperature
3. Boyle temperature
4. Reduced temperature
Equivalent mass of Ferrous oxalate in its titration with is 48. This is because
1. Ferrous oxalate is a triprotic acid
2. Oxidation number of carbon changes from 2.5 to 4, hence equivalent mass becomes of its molecular mass.
3. Total charge on cation as well as anion is 3.
4. Oxidation potential of as well as oxalate ion to is same hence equivalent mass becomes rd of molecular mass.
Mole percentage of in a non-stoichiometric oxide of iron. O, will be
1. 88%
2. 12%
3. 91.67%
4. 84.48%
The main product of the reaction and AgCN is:
1.
2.
3.
4.
2-acetoxy benzoic acid is used as an
(1) Antimalarial
(2) Antidepressant
(3) Antiseptic
(4) Antipyretic
The de-Broglie wavelength relates applied voltage is.
(1)
(2)
(3)
(4)
Orbital that is used by oxygen atom to form sigma bond with other oxygen atom in molecule is :
1. Pure p-orbital.
2. .
3. -hybrid orbital.
4. sp-hybrid orbital.
If Z-axis is the molecular axis, then sigma molecular orbitals are formed by the overlap of
(1)
(2)
(3)
(4)
Which contains both polar and non-polar covalent bonds?
1.
2.
3.
4.
Inert pair effect is the prominent character of
1. p-block element
2. d-block element
3. s-block element
4. f-block element
If a system is at equilibrium, the rate of forward to the reverse reaction is
(1) Less
(2) Equal
(3) High
(4) At equilibrium
The atmospheric gases which cannot produce the greenhouse effect is
1.
2.
3.
4. O3
Normality of is
(1) 2 N
(2) 4 N
(3)
(4)
What is the cell reaction occurring in Daniel cell (Galvanic cell)?
(1)
(2)
(3)
(4)
If the volume of the vessel in which the reaction is occurring is diminished to of its initial volume. The rate of the reaction will be increased by
(1) 3 times
(2) 9 times
(3) 27 times
(4) 36 times
Consider the following reaction:
is
1.
2.
3.
4. None of these
which of the following is non reducing sugar?
1. Sucrose
2. Maltose
3. Lactose
4.
A potential difference of 30 KV is applied across X -ray tube. Find the minimum wavelength of X-ray generated.
(1)
(2)
(3)
(4)
Vander Waal constants for gases A, B and C are as follows
Gas a[kPa d] b[lit/mol]
A 410 0.027
B 1215 0.03
C 608 0.032
Which of the following option contains correct arrangement of "gas with highest critical temperature" & "gas with most ideal behaviour around 1850 K" respectively?
(1) B, A
(2) A, B
(3) C, B
(4) B, C
The standard enthalpy of combustion at of hydrogen, cyclohexene (C6H10), and cyclohexane (C6H12) are -241, -3800 and -3920 kJ mol-1, respectively. Calculate the standard enthalpy of hydrogenation of cyclohexene.
1. | -131 kJ mol-1 | 2. | -155 kJ mol-1 |
3. | -167 kJ mol-1 | 4. | -121 kJ mol-1 |
How many stereo isomer products will obtained in this reaction
(1) 1
(2) 2
(3) 3
(4) 4
For an ideal binary liquid solution of A and B where A is more volatile, which relationship between is correct?
[Xrepresents mole fraction in liquid phase, Yrepresents mole fraction in vapour phase]
(1)
(2)
(3)
(4) all
Electrolysis of hot aqueous solution of NaCl gives i.e. sodium perchlorate,
How many faraday are required to obtain 1000 g of sodium perchlorate?
(1) 65.3
(2) 40.3
(3) 18.3
(4) 31.6
The IUPAC name of [] is:
1. | Triethylenediaminechromium (III) chloride |
2. | Tris(ethylenediammine)chromium (II) chloride |
3. | Tris(ethylenediammine)chromium (III) chloride |
4. | Tris(ethylenediamine)chromium (II) chloride |
Alkali metals act as a :
1. Good dehydrating agent.
2. Good reducing agent.
3. Good oxidising agent.
4. None of the above.
Which of the following is 'V' shaped?
1.
2.
3.
4.
Which salt shows a higher rate of hydrolysis?
(Assume that Kb of all weak base is same)
1. NH4Cl
2. CuSO4
3. AlCl3
4. All are equally hydrolysed
Which one of the following reactions will occur on heating above its boiling point?
1.
2.
3.
4.
Which reagent is used to remove SO42- and Cl-?
1. NaOH
2. Pb(NO3)2
3. BaSO4
4. KOH
The compound which does not exits, is:
(1)
(2)
(3)
(4)
Aluminium vessels should not be washed with materials containing washing soda since
(1) washing soda is expensive
(2) washing soda is easily decomposed
(3) washing soda reacts with aluminium to form soluble aluminate
(4) washing soda reacts with aluminium to form insoluble oxide
Graph between log and log P is a straight line inclined at an angle θ= 45°. When pressure of 0.5 atm and log k = 0.699, the amount of solute adsorbed per g of adsorbent will be
(A) 1 g/g adsorbent
(B) 1.5 g/g adsorbent
(C) 2.5 g/g adsorbent
(D) 0.25 g/g adsorbent
Which of the following statements is not correct for leaching?
(1) Ore should be soluble in a suitable solvent.
(2) It is done for low grade ores.
(3) Leaching of from bauxite is based on amphoteric nature of bauxite which form soluble salt.
(4) None of these
In the given reaction
the product P is
Which one of the following is a chain growth polymer?
1. Starch
2. Nucleic acid
3. Polystyrene
4. Protein
Which type of bond is present in molecule?
1. Ionic bond
2. Covalent bond
3. Coordinate
4. All of three
In the following reaction,
1. P is only oxidized
2. P is only reduced
3. P is both oxidized as well as reduced
4. None of the above
An electron revolves around a nucleus of charge Ze. In order to excite the electron from the state n=3 to n=4, the energy required is 66.0 eV.
The value of Z will be:
1. 25
2. 10
3. 4
4. 5
All bulbs in figure below are identical . Which bulb lights most brightly?
1. 1 only
2. 2 only
3. 3 and 4 only
4. 1 and 5 only
The ratio of tensions in the string connected to the block of mass m2 in figure (a) and figure (b) respectively is (friction is absent everywhere) : [m1 =50 kg, m2 =80 kg and F=1000N]
1. 7 : 2
2. 2 : 7
3. 3 : 4
4. 4 : 3
The energy required to move a satellite of mass m from an orbit of radius 2R to 3R around the Earth having mass M is:
1. | \(\frac{\mathrm{GMm}}{\mathrm{12R}} \) | 2. | \(\frac{\mathrm{GMm}}{\mathrm{R}} \) |
3. | \(\frac{\mathrm{GMm}}{8 \mathrm{R}} \) | 4. | \(\frac{\mathrm{GMm}}{2 \mathrm{R}}\) |
A rod with rectangular cross section oscillates about a horizontal axis passing through one of its ends and it behaves like a seconds pendulum. Its length will be - [Take ]
1. 1.5 m
2. 1 m
3. 3 m
4. 2 m
A and B are two adiabatic curves for two different gases.
Then A and B corresponds to :
1. Ar and He respectively.
2. He and H respectively.
3. O and H respectively.
4. H and He respectively
Different locations of a cyclist moving with constant speed on an road of hilly region are as shown in the figure below. At which of these locations would he feel heaviest ?
1. A
2. B
3. C
4. D
In the circuit shown in the figure, the potential difference
across the 4.0 F capacitor is
1. volts
2. 4 volts
3. 6 volts
4. 8 volts
Three long, straight and parallel wires carrying currents are arranged as shown in figure. The force experienced by 10 cm length of wire Q is :
1. 1.4×10 towards the right
2. 1.4×10 N towards the left.
3. 2.6×10 to the right
4. 2.6×10 N to the left
A series AC circuit has a resistance of 4 and an inductor of reactance 3 . The impedance of the circuit is z1. Now when a capacitor of reactance 6 is connected in series with the above combination, the impedance becomes will be:
1. 1 : 1
2. 5 : 4
3. 4 : 5
4. 2 : 1
When an unpolarized light of intensity I is incident on a polarizing sheet, the intensity of the light which does not get transmitted is
1.
2.
3. zero
4.
The maximum number of possible interference maxima on one side of central bright fringe(including it) for slit separation equal to twice the wavelength in Young’s double-slit experiment is:
1. Infinite
2. Five
3. Three
4. Zero
If one photon has 25 eV energy and the work function of the material is 7 eV, then the value of stopping potential will be-
1. 32 V
2. 18 V
3. 3.3. V
4. Zero
A piece of copper and the other of germanium are cooled from the room temperature to 80 K, then which of the following would be the correct statement ?
1. Resistance of each increases.
2. Resistance of each decreases.
3. Resistance of copper increase while that of
germanium decreases.
4. Resistance of copper decrease while that of
germanium increases.
The real angle of dip, if a compass needle is kept in a vertical plane at an angle of 30 to the magnetic meridian and in this plane, needle makes an angle of 45 with horizontal, is
1.
2.
3.
4.
Electromagnetic waves are transverse in nature is evident by:
1. Polarization
2. Interference reflection
3. Reflection
4. Diffraction
The variation of velocity of a particle moving along straight line is shown in figure. The distance traversed by the body in 4 seconds is
(1) 70 m
(2) 60 m
(3) 40 m
(4) 55 m
A two car train, with data as given in figure is pulled by a child on a horizontal frictionless surface. The strings are massless. The force exerted by car A on the string S is
(1) 10 N
(2) 20 N
(3) zero
(4) 15 N
The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is -
(1)
(2) 2mgR
(3) mgR
(4)
The steel wire of cross - sectional area = 2 [Y = 200 GPa, ] is stretched and tied firmly between two rigid supports, at a temperature = . At this moment, the tension in the wire is 200 N. At what temperature will the tension become zero?
(1)
(2)
(3)
(4)
A source of sound of frequency n and a listener approach each other with a velocity equal to of velocity of sound. The apparent frequency heard by the listener is:
1.
2.
3.
4.
The circular coil of a galvanometer has fifty turns. The coil has a radius of 1 cm. The coil is placed in a radial magnetic field of 0.010 T. The torsion coefficient of the hairspring on which the coil hangs is . Determine the deviation of the galvanometer hand if the current through the coil is 1.0 mA.
(1)
(2)
(3)
(4)
The ratio of maximum and minimum intensities in the interference pattern of two sources is 4:1. The ratio of their amplitude is
(1) 1 : 3
(2) 3 : 1
(3) 1 : 9
(4) 1 : 16
What is the momentum of a photon having frequency ?
(1)
(2)
(3)
(4)
are masses of proton and neutron, respectively, at rest. If they combine to form a deuterium nucleus. The mass of the nucleus will be:
(1) less than
(2) less than
(3) less than
(4) greater than
The component of vector along the direction of is
(1)
(2)
(3)
(4)
A hollow vertical cylinder of radius R is rotated with angular velocity about an axis through its center. What is the minimum coefficient of static friction necessary to keep the mass M suspended on the inside of the cylinder as it rotates?
1.
2.
3.
4.
Two planets A and B have the same material density. If the radius of A is twice that of B, then the ratio of escape velocity is
(1) 2
(2)
(3)
(4)
A ball is thrown vertically upwards. Then the velocity-time (v-t) graph will be:
1. | 2. | ||
3. | 4. |
Amplitude of harmonic oscillator is 'a'. When velocity of particle is half of maximum velocity, then position of particle will be -
(1)
(2)
(3) a / 2
(4) a
How many gm of ice at C are needed to cool 200 gm of water from ?
(1) 20 gm
(2) 30 gm
(3) 40 gm
(4) 50 gm
If two soap bubbles of different radii are connected by a tube-
(1) Air flows from the smaller bubble to the bigger.
(2) Air flows from bigger bubble to the smaller bubble till the sizes are interchanged.
(3) Air flows from the bigger bubble to the smaller bubble till the sizes become equal.
(4) There is no flow of air.
The number of turns in primary and secondary coils of a transformer is 50 and 200 respectively. If the current in the primary coil is 4 A, then the current in the secondary coil is
(1) 1 A
(2) 2 A
(3) 4 A
(4) 5 A
Two balls P and Q are at opposite ends of the diameter of a frictionless horizontal circular groove. P is projected along the groove and the end of T second, it strikes ball Q. Let difference in their final velocities be proportional to the initial velocity of the ball P and coefficient of proportionality is e ,then second strike occurs at:
1. 2 T/e
2. e/2T
3. 2eT
4. T/2e
A square loop of side a hangs from an insulting hanger of spring balance. The magnetic field strength B is present only at its lower edge and carries a current I according to figure. Find the change in the reading of the spring balance if the direction of current is reversed.
(1) I aB
(2) 2I aB
(3)
(4)
A car moving at a speed of 28 m/s blows a horn of the frequency 500 Hz and overtakes a car moving in the same direction with a speed of 13 m/s. The apparent frequency heard by the observer of other car will be (after overtaking): (sound speed=342 m/sec)
1. 480 Hz
2. 500 Hz
3. 520 Hz
4. 580 Hz
The angle of prism is and refractive index for green light is 1.5. If a green ray passes from it the deviation will be
(1)
(2)
(3)
(4)
Two small balls having equal positive charge Q on each are suspended by two insulating strings of equal length L meter, from a hook fixed to a stand. The whole set up is taken in a satellite into space where there is no gravity. Then the angle between two strings and tension in each string is
1.
2.
3.
4.
Slope of curve is ( is stopping potential, is frequency in photoelectric experiment)
(1) e
(2)
(3)
(4) h
The total current supplied to the circuit by the battery is:
1. 1 A
2. 2 A
3. 4 A
4. 6 A
In the energy band diagram of material shown below, the open circles and filled circles denote holes and electrons respectively. The material is
(1) A p-type semiconductor
(2) An insulator
(3) A metal
(4) An n-type semiconductor
A semicircular conducting wire is placed in yz plane in a uniform magnetic field directed along positive z-direction. An induced emf will be developed between the ends of the wire if it is moved along.
1. Positive x-direction
2. Positive y-direction
3. Positive z-direction
4. None of these
A child is standing on the edge of a merry-go-round that has
the shape of a disk, as shown in the figure. The mass of the child is 40 kilograms. The merry-go-round has a mass of 200 kilograms and a radius of 2.5 meters, and it is rotating with an angular velocity of radians per second. The child then walks slowly towards the center of the merry-go-round. When the child reaches the center, what is the angular velocity of the disc? (The size of the child can be neglected.)
1. 2.0 rad/s
2. 2.2 rad/s
3. 2.4 rad/s
4. 2.8 rad/s
The radius of the convex surface of plano-convex lens is 20cm and the refractive index of the material of the lens is 1.5. The focal length of the lens is
1. 30 cm
2. 50 cm
3. 20 cm
4. 40 cm
After a time equal to four half lives, the amount of radioactive material remaining undecayed is-
1. 6.25%
2. 12.50%
3. 25.0%
4. 50.0%