AIPMT 2000 | NEET Year Wise Previous Years Questions

Biology

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

Chemistry

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

Physics

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

AIPMT 2000

MCQ (Single Correct Answer)

-1

Conjugate acid of NH₂^$$-$$ is

NH₄OH

NH₄⁺

NH₂^$$-$$

NH₃

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

Equilibrium constant K_p for following reaction
MgCO_3(s) $$\rightleftharpoons$$ MgO_(s) + CO_2(g)

K_p = P_CO₂

K_p = P_CO₂ $$ \times $$ $${{{P_{C{O_2}}} \times {P_{MgO}}} \over {{P_{MgC{O_3}}}}}$$

K_p = $${{{P_{C{O_2}}} + {P_{MgO}}} \over {{P_{MgC{O_3}}}}}$$

K_p = $${{{P_{MgC{O_3}}}} \over {{P_{C{O_2}}} + {P_{MgO}}}}$$

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