AIPMT 2000 | NEET Year Wise Previous Years Questions

Biology

1. In which stage of cell cycle, DNA replication occurs? 2. If the apical bud has been removed then we observe 3. By which action a seed coat becomes permeable to water 4. Which is the first CO2 acceptor enzyme in C4 plants? 5. For the synthesis of one glucose molecule the Calvin cycle operates for 6. For assimilation of one CO2 molecule, the enerrgy required in from of ATP and NADPH2 are 7. The first step for initiation of photosynthesis will be 8. Which hormone is responsible for fruit ripening? 9. Spindle fibre unite with which structure of chromosomes? 10. In which point, pulmonary artery is different from pulmonary vein? 11. Differennce between pulmonary artery and pulmonary vein is that, the pulmonary artery has 12. Which statement is true for WBC? 13. Sternum is connected to ribs by 14. Concentration of urine depends upon which organ? 15. Conversion of ammonia to urea is done by 16. What is the name of joint between ribs and sternum? 17. Bone related with skull is 18. MSH is secreted by 19. Which of the following characters is absent in all chordates? 20. Black rust of wheat is caused by 21. Plant group with largest ovule, largest tree, and largest gametes is 22. A student observed an algae with chlorophyll a, b and phycoerythrin, it should belong to 23. In ferns, meiosio takes place at the time of 24. What is true for mammalia? 25. Which of the following animals have scattered cells with cell - tissue grade organisation? 26. Cleavage in mammals is 27. Similarly in Ascaris lumbricoides and Anopheles stephensi is 28. What happens if bone of frog is kept in dilute hydrochloric acid? 29. Which gland secretes odorous secretion in mammals? 30. Hair found in the inflorescence of Zea mays are the modification of 31. Enzymes are not found in 32. Which of the following have carbohydrate as prosthetic group? 33. Geocarpic fruits is 34. ATP is 35. Pneumatophores are found in 36. Role of enzyme in reactions is to/as 37. Which factor is responsible for inhibition of enzymatic process during feedback? 38. Which is the reason for highest biomass in aquatic ecosystem ? 39. Who is directly related to man ? 40. Which disease of man is similar with cattle's, bovine spongyform encephalopathy ? 41. Which aquatic fern is used to increase the yield in paddy crop ? 42. Which of the following is used to manufacture ethanol from starch ? 43. Which is showing accurate pairing ? 44. Saline solution is given to patients of Cholera because 45. The bacteria generally used for genetic engineering is : 46. Plasmid has been used as vector because : 47. Viable material of endangered species can be preserved by : 48. Which of the following is initiation codon ? 49. Indri-indri lemur is found in : 50. What happens in plants during vascularisation ? 51. Characteristic of simple epithelium is that they 52. Lysosome contains : 53. Proteoglycan in cartilages which is part of polysaccharide is 54. Which of the following ribosomes are engaged in protein synthesis in animal cell ? 55. Function of telomeres in nucleus is 56. Primary function of enteronephric nephridia of Pheretima : 57. Which pair is correct ? 58. Which cell organelle is concerned with glycosylation of protein ? 59. According to mendelism which character is showing dominance ? 60. Melatonin is secreted by 61. Depolarization of axolema during nerve conduction takes place because of 62. Endosperm is formed during the double fertilization by 63. Eight nucleated embryo sac is 64. Blastopore is the pore of : 65. What is the work of progesteron which is present in oral contraceptive pills : 66. What is the work of copper T : 67. In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klienfelter's sy 68. Erythroblastosis foetalis is caused when : 69. Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered : 70. Mongolian idiots are due to trisomy in 21st chromosome is called : 71. Which is not a vestigial organ in man ? 72. Character which is closely related to human evolution 73. In three dimensional view the molecule of t-RNA is : 74. Similarity in DNA and RNA : 75. Anticodon occurs in : 76. Which is the most important factor for continuity of a species from evolutionary point of view ? 77. Which evidence of evolution related to Darwin's finches ? 78. Method of DNA replication in which two strands of DNA separates and synthesize new strands 79. Length of one loop of B- DNA : 80. Homo sapiens have evolved in

Chemistry

1. Shape of Fe(CO)5 is 2. Which complex compound will give four isomers? 3. Which ion is colourless? 4. Isoelectronic species are 5. then A is 6. First product of the reaction between RCHO and NH2NH2 is 7. Benzoic acid may be converted into ethyl benzoate by reaction with : 8. Reduction by LiAlH4 of hydrolysed product of an ester gives 9. Polarisation in acrolein can be described as 10. Which one is responsible for production of energy in bio-reaction? 11. $$\alpha $$ -$$D$$-glucose and $$\beta $$-$$D$$-glucose are 12. Mg is present in 13. Which is maximum stable? 14. How enzymes increases the rate of reactions 15. For the disproportionation of copper 2Cu+  $$ \to $$ Cu2+ + Cu, Eo is (Given Eo for Cu2+/Cu is 0.34 V and E 16. For the reaction H+ + BrO$$_3^ - $$ + 3Br$$-$$ $$ \to $$ 5Br2 + H2O which of the following relation correctly represents 17. Equivalent conductances of Ba2+ and Cl$$-$$ ions are 127 and 76 ohm$$-$$1 cm$$-$$1 eq$$-$$1 respectively. Equivalent con 18. From the colligative properties of solution, which one is the best method for the determination of molecular weight of p 19. Which compound has planar structure? 20. Which compound is electron deficient? 21. Which of the following shows maximum number of oxidation states? 22. A 300 grams radioactive sample at initial half life is 3 hours. After 18 hours remaining quantity 23. Cell reaction is spontaneous when 24. For given energy, E = 3.03 $$ \times $$ 10$$-$$19 Joules corresponding wavelength is (h = 6.626 $$ \times $$ 10$$-$$34 25. Oxidation numbers of A, B, C are + 2, +5 and $$-$$2 respectively. Possible formula of compound is 26. In quantitative analysis of second group in laboratory, H2S gas is passed in acidic medium for precipitation. When Cu2+ 27. Volume of CO2 obtained by the complete decomposition of 9.85 g of BaCO3 is 28. Right order of dissociation energy N2 and N2+ is 29. d$$\pi $$ $$-$$ p$$\pi $$ bond present in 30. Which statement is wrong ? 31. Which species does not exhibit paramagnetism? 32. The entropy change in the fusion of one mole of a solid melting at 27oC (latent heat of fusion is 2930 J mol–1) is : 33. For the reaction, C2H5OH(l) + 3O2(g) $$ \to $$ 2CO2(g) + 3H2O(l) which one is true 34. 2Zn + O2 $$ \to $$ 2ZnO;  $$\Delta $$Go = $$-$$ 616 J 2Zn + S2 $$ \to $$ 2ZnS;  $$\Delta $$Go = $$-$ 35. For any reversible reaction, if we increase concentration of the reactants, then effect on equilibrium constant 36. Which statement is wrong about pH and H+? 37. Conjugate acid of NH2$$-$$ is 38. Equilibrium constant Kp for following reaction MgCO3(s) $$\rightleftharpoons$$ MgO(s) + CO2(g) 39. 2-Butene shows geometrical isomerism due to 40. Which reagent converts propene to 1-propanol ? 41. Dihedral angle in staggered form of ethane is 42. Increasing order of electrophilic substitution for following compounds 43. In Friedel-Crafts reaction , toluene can be prepared by

Physics

1. A tall man of height 6 feet, want to see his full image. Then required minimum length of the mirror will be 2. A car battery of emf 12 V and internal resistance $$5 \times {10^{ - 2}}$$ $$\Omega $$., receives a current of 60 amp, f 3. A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is 4. The net resistance of the circuit between A and B is 5. The potentiometer is best for measuring voltage, as 6. A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capa 7. A string is cut into three parts, having fundamental frequencies n1, n2, n3 respectively. Then original fundamental fre 8. The frequency order for $$\gamma $$-rays (a), X-rays (b), UV rays (c) is 9. Rainbow is formed due to 10. By photoelectric effect, Einstein proved 11. For a plano convex lens ($$\mu $$ = 1.5) has radius of curvature 10 cm. It is silvered on its plane surface. Find focal 12. Electric field at centre O of semicircle of radius $$a$$ having linear charge density $$\lambda $$ given as 13. A bubble in glass slab ($$\mu $$ = 1.5) when viewed from one side appears at 5 cm and 2 cm from other side, then thickne 14. Who evaluated the mass of electron infirectly with help of charge 15. Nuclear fission is best explained by 16. Maximum frequency of emission is obtained for the transition 17. When an electron does transition from n = 4 to n = 2, then emitted line spectrum will be 18. From the following diode circuit, which diode is in forward biased condition 19. The cations and anions are arranged in alternate form in 20. A black body has maximum wavelength $$\lambda $$m at 2000 K. Its corresponding wavelength at 3000 K will be 21. Motion of a particle is given by equation s = (3t3 + 7t2 + 14t + 8) m. The value of acceleration of the particle at t = 22. Two masses as shown in the figure are suspended from a massless pulley. The acceleration of the system when masses are l 23. The width of river is 1 km. The velocity of boat is 5 km/hr. The boat covered the width of river in shortest time 15 min 24. A body of mass 3 kg hits a wall at an angle of 60o and returns at the same angle. The impact time was 0.2 sec. The force 25. A man is slipping on a frictionless inclined plane and a bag falls down from the same height. Then the velocity of both 26. Two projectiles of same mass and with same velocity are thrown at an angle 60o and 30o with the horizontal, then which w 27. A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 seconds, it explodes into two parts. One part of mass 40 28. For the adjoining diagram, the correct relation between I1, I2, and I3 is, (I-moment of inertia) 29. For a hollow cylinder and a solid cylinder rolling without slipping on an inclined plane, then which of these reaches ea 30. As shown in the figure at point O a mass is performing vertical circular motion. The average velocity of the particle is 31. If $$\overrightarrow F = \left( {60\widehat i + 15\widehat j - 3\widehat k} \right)$$ N and $$\overrightarrow v = \lef 32. For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocit 33. A body of weight 72 N moves from the surface of earth at a height half of the radius of earth, then gravitational force 34. Gravitational force is required for 35. The (W/Q) of a Carnot engine is 1/6, now the temperature of sink is reduced by 62oC, then this ratio becomes twice, ther 36. The bob of simple pendulum having length $$l$$, is displaced from mean position to an angular position q with respect to 37. To find out degree of freedom, the expansion is 38. Two masses $$M$$A and $$M$$B are hung from two strings of length $$l$$A and $$l$$B respectively. They are executing SHM 39. Two bulbs of (40 W, 200 V), and (100 W, 200 V). Then correct relation for their resistances 40. The magnetic field at centre, P will be 41. The equations of two waves acting in perpendicular directions are given as x = $$a$$cos($$\omega $$t +$$\delta $$) and 42. Which pair do not have equal dimensions ?

AIPMT 2000

MCQ (Single Correct Answer)

-1

2Zn + O₂ $$ \to $$ 2ZnO;  $$\Delta $$G^o = $$-$$ 616 J
2Zn + S₂ $$ \to $$ 2ZnS;  $$\Delta $$G^o = $$-$$ 293 J
S₂ + 2O₂ $$ \to $$ 2SO₂;   $$\Delta $$G^o = $$-$$408 J
$$\Delta $$G^o for the following reaction
2ZnS + 3O₂ $$ \to $$ 2ZnO + 2SO₂ is

$$-$$ 731 J

$$-$$ 1317 J

$$-$$ 501 J

+ 731 J

AIPMT 2000

MCQ (Single Correct Answer)

-1

For any reversible reaction, if we increase concentration of the reactants, then effect on equilibrium constant

depends on amount of concentration

unchange

decrease

increase

AIPMT 2000

MCQ (Single Correct Answer)

-1

Which statement is wrong about pH and H⁺?

pH of neutral water is not zero.

Adding 1 N solution of CH₃COOH and 1 N solution of NaOH, pH will be seven.

[H⁺] of dilute and hot H₂SO₄ is more than concentrated and cold H₂SO₄

Mixing solution of CH₃COOH and HCl. pH will be less than 7.

AIPMT 2000

MCQ (Single Correct Answer)

-1

Conjugate acid of NH₂^$$-$$ is

NH₄OH

NH₄⁺

NH₂^$$-$$

NH₃

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