Biology
1. Menstrual flow occurs due to lack of : 2. During seed germination its stored food is mobilized by 3. The diagram given here is the standard ECG of a normal person. The P-wave represents the
4. The characteristic and an example of a synovial joint in humans is 5. Select the correct statement with respect to locomotion in humans. 6. The most abundant intracellular cation is 7. The H-zone in the skeletal muscle fibre is due to 8. Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency s 9. Which of the following statements is correct in relation to the endocrine system? 10. A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abn 11. Which of the following is not the function of placenta? 12. The three boxes in this diagram represent the three major biosynthetic pathway in aerobic respiration. Arrows represent 13. Advantage of cleistogamy is 14. Which one of the following statements is correct? 15. Meiosis takes place in 16. Perisperm differs from endosperm in 17. Product of sexual reproduction generally generates 18. Seed coat is not thin, membranous in 19. Megasporangium is equivalent to 20. What is the correct sequence of sperm formation? 21. One of the legal methods of birth control is : 22. Select the incorrect statement with regard to Haemophilia is : 23. Which group of animals belong to the same phylum? 24. Read the following statements (A - E) and answer the question which follows them.
(A) In liverworts, mo 25. Monoecious plant of Chara shows occurrence of 26. Which of the following are likely to be present in deep sea water? 27. Isogamous condition with non-flagellated gametes is found in 28. Pigment containing membranous extensions in some cyanobacteria are 29. Select the wrong statement 30. Which of the following are correctly matched with respect to their taxonomic classification? 31. Match the name of the animal (column I), with one characteristic (column II), and the phylum/class (column III) to which 32. One of the representatives of Phylum Arthropoda is 33. If both parents are carriers for thalessemia, which is an autosomal recessive disorder, what are the chances of
pregnanc 34. In China rose the flowers are 35. Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunhemp, gram, guava, beam, chilli, plum, pe 36. Transition state structure of the substrate formed during an enzymatic reaction is 37. A phosphoglyceride is always made up of 38. Macromolecule chitin is 39. The essential chemical components of many coenzymes are 40. The complex formed by a pair of synapsed homologous chromosomes is called 41. Which of the metabolites is common to respiration-mediated breakdown of fats, carbohydrates and proteins? 42. Natural reservoir of phosphorus is : 43. Secondary productivity is rate of formation of new organic matter by : 44. Which one of the following is not used for ex situ plant conservation? 45. Which of the following represent maximum number of species among global biodiversity ? 46. Which one of the following processes during decomposition is correctly described ? 47. Which of the following represent maximum number of species among global biodiversity ? 48. Interfascicular cambium develops from the cells of : 49. Age of a tree can be estimated by : 50. Lenticels are involved in 51. What external changes are visible after the last moult of a cockroach nymph ? 52. The colonies of recombinat bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of : 53. The Golgi complex plays a major role : 54. A major site for synthesis of lipids is : 55. Which one of the following organelle in the figure correctly matches with its function ?
56. The figure shows a diagrammatic view of human
respiratory system with labels A, B, C and D.
Select the option which give 57. A stage in cell division is
shown in the figure.
Select the answer which
gives correct identification of the stage with
58. The given figure shows schematic plan of blood
circulation in humans with labels A to D.
Identify the label and give its 59. A diagram showing axon terminal and synapse
is given. Identify correctly at least two of
A - D.
60. Figure shows human urinary system with
structures labelled A to D. Select option which
correctly identifies them and giv 61. According to Darwin, the organic evolution is due to - 62. Which idea is depicted by a cross in which the F1
generation resembles both the parents?
63. If two persons with 'AB' blood group marry and have sufficiently large number of children, these children
could be class 64. Artificial insemination means : 65. Which of the following cannot be detected in a developing foetus by amniocentesis ? 66. Which enzyme will be produced in a cell in which there is a non-sense mutation in the lac Y gene ? 67. The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.
68. Which of the following statements is not true of two genes that show 50% recombination frequency ? 69. The tendency of population to remain in genetic equilibrium may be disturbed by : 70. The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in
response to 71. The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function, This
is an ex 72. Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is
referred 73. Infection of Ascaris usually occurs by : 74. A good producer of citric acid is
75. Which of the following Bt crops is being grown in India by the farmers ? 76. A biologist studied the population of rats in a barn, He found that the average natality was 250, average
mortality 240, 77. A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is : 78. Which of the following is not corretly matched for the organism and its cell wall degrading enzyme ? 79. DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by : 80. Besides paddy fields, cyanobacteria are also found inside vegetative part of : 81. Which one of the following is not a correct statement?
Chemistry
1. An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium (III) chloride. The number of 2. A magnetic moment at 1.73 BM will be shown by one among of the following 3. Based on equation E = $$-$$ 2.178 $$ \times $$ 10$$-$$18 J $$\left( {{{{Z^2}} \over {{n^2}}}} \right)$$, certain conclus 4. Which of the following structure is similar to graphite? 5. How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO3? The concentrated ac 6. A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl of pH = 10 and by passing hydrogen gas ar 7. A button cell used in watches function as following.
Zn(s) + Ag2O(s) + H2O(l) $$\rightleftharpoons$$ 2Ag(s) + Zn2+(aq) 8. What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20oC to 35oC?
(R = 9. At 25oC molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm$$-$$1 cm2 mol$$-$$1 and at inf 10. Which is the strongest acid in the following? 11. In the reaction
A is 12. Which one of the following molecules contains no $$\pi $$ bond? 13. Which of these is not a monomer for a high molecular mass silicone polymer? 14. The basic structural unit of silicates is 15. Which of the following does not give oxygen on heating? 16. Which of the following lanthanoid ions is diamagnetic?
(At. nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70) 17. Identify the correct order of solubility in aqueous medium. 18. Which of the following statements about the interstitial compounds is incorrect? 19. A reaction having equal energies of activation for forward and reverse reactions has 20. What is the maximum numbers of electrons that can be associated with the following set of quantum numbers ?
n = 3, $$l$ 21. 6.02 $$ \times $$ 1020 molecules of urea present in 100 mL of its solution. The concentration of solution is 22. The value of Planck's constant is 6.63 $$ \times $$ 10$$-$$34 J s. The speed of light is 3 $$ \times $$ 1017 mm s$$-$$1 23. Which of the following is paramagnetic? 24. XeF2 is isostructural with 25. Which of the following is electron-deficient ? 26. Dipole-induced dipole interactions are present in which of the following pairs 27. Which of the following is a polar molecule? 28. KMnO4 can be prepared from K2MnO4 as per the reaction,
3MnO42$$-$$ + 2H2O $$\rightleftharpoons$$ 2MnO4$$-$$ + MnO2 + 29. Which of these is least likely to act as a lewis base ? 30. Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating ? 31. The structure of isobutyl group in an organic compound is 32. Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is 33. The radical,
is aromatic because it has 34. Which of the following compounds will not undergo Friedal-Craft's reaction easily? 35. Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI? 36. The order of stability of the following tautomeric compounds is
37. Reaction by which benzaldehyde cannot be prepared 38. Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80$$-$$100oC forms which one of the following products?
Physics
1. A plano convex lens fits exactly into a plano concave lens. Their plane surfaces are parallel to each other. If lenses a 2. A, B and C are three points in a uniform electric field. The electric potential is
3. The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 $$\Omega $$ is 4. Two pith balls carrying equal charges are suspended from a common point by strings of equal length, the equilibrium sepa 5. The resistances of the four arms P, Q, R and S in a Wheatstone's bridge are 10 ohm, 30 ohm, 30 ohm and 90 ohm, respectiv 6. A current loop in a magnetic field 7. When a proton is released from rest in a room, it starts with an initial acceleration $$a$$0 towards west. When it is pr 8. A bar magnet of length $$'l'$$ and magnetic dipole moment 'M' is bent in the form of an arc as shown in figure. The new 9. A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m.f. is 10. A coil of self-inductance L is connected in series with a bulb B and an AC source. Brightness of the bulb decreases when 11. The condition under which a microwave oven heats up a food item containing water molecules most efficiently is 12. Ratio of longest wave lengths corresponding to Lyman and Balmer series in hydrogen spectrum is 13. A wire of resistance 4 $$\Omega $$ is stretched to twice its original length. The resistance of stretched wire would be 14. For photoelectric emission from certain metal the cutoff frequency is $$\upsilon $$. If radiation of frequency 2$$\upsil 15. The wavelength $$\lambda $$e of an electron and $$\lambda $$p of a photon of same energy E are related by 16. In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths $${\lambda 17. A parallel beam of fast moving electrons is incident normally on a narrow slit. A fluorescent screen is placed at a larg 18. For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens b 19. A certain mass of Hydrogen is changed to Helium by the process of fusion. The mass defect in fusion reaction is 0.02866 20. The output (X) of the logic circuit shown ion figure will be
21. A body of mass 'm' is taken from the earth's surface to the height equal to twice the radius (R) of the earth. The chang 22. A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 seconds, the next 5 seconds and th 23. The velocity of a projectile at the initial point A is $$\left( {2\widehat i + 3\widehat j} \right)$$ m/s. It's velocity 24. The upper half of an inclined plane of inclination $$\theta $$ is perfectly smooth while lower half is rough. A block st 25. An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. Th 26. A uniform force of $$\left( {3\widehat i + \widehat j} \right)$$ newton acts on a particle of mass 2 kg. Hence the parti 27. Three blocks with masses m, 2m and 3m are connected by strings, as shown in the figure. After an upward force F is appli 28. A rod PQ of mass M and length L is hinged at end P. The rod is kept horizontal by a massless string tied to point Q as s 29. A small object of uniform density rolls up a curved surface with an initial velocity 'v'. It reaches upto a maximum heig 30. The following four wires are made of the same material. Which of these will have the largest extension when the same ten 31. The wettability of a surface by a liquid depends primarily on 32. A piece of iron is heated in a flame. It first becomes dull red then becomes reddish yellow and finally turns to white h 33. Infinite number of bodies, each of mass 2 kg are situated on x-axis at distance 1 m, 2 m, 4 m, 8 m, . . . , respectively 34. The molar specific heats of an ideal gas at constant pressure and volume are denoted by Cp and Cv, respectively. If &nbs 35. In the given (V $$-$$ T) diagram, what is the relation between pressure P1 and P2?
36. A source of unknown frequency gives 4 beats/s when sounded with a source of known frquency 250 Hz. The second harmonic o 37. A gas is taken through the cycle
A $$ \to $$ B $$ \to $$ C $$ \to $$ A, as shown. what is the net work done by the gas 38. The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from T1K to T2K is 39. During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio 40. A wave travelling in the + ve x-direction having displacement along y-direction as 1 m, wavelength 2$$\pi $$ m and freq 41. If we study the vibration of a pipe open at both ends. then the following statement is not true. 42. If an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively.
Quant
1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
A
Microwaves are heat waves, so always produce heating.
B
Infra-red waves produce heating in a microwave oven.
C
The frequency of the microwaves must match the resonant frequency of the water molecules.
D
The frequency of the microwaves has no relation with natural frequency of water molecules.
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Ratio of longest wave lengths corresponding to Lyman and Balmer series in hydrogen spectrum is
A
$${7 \over {29}}$$
B
$${9 \over {31}}$$
C
$${5 \over {27}}$$
D
$${3 \over {23}}$$
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
A wire of resistance 4 $$\Omega $$ is stretched to twice its original length. The resistance of stretched wire would be
A
8 $$\Omega $$
B
16 $$\Omega $$
C
2 $$\Omega $$
D
4 $$\Omega $$
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
For photoelectric emission from certain metal the cutoff frequency is $$\upsilon $$. If radiation of frequency 2$$\upsilon $$ impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass)
A
$$\sqrt {{{2h\upsilon } \over m}} $$
B
$$2\sqrt {{{h\upsilon } \over m}} $$
C
$$\sqrt {{{h\upsilon } \over {\left( {2m} \right)}}} $$
D
$$\sqrt {{{h\upsilon } \over m}} $$
Paper Analysis
Total Questions
Biology 81
Chemistry 38
Physics 42
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