GPAT Paper, 2015 | Find out GPAT 2015 question Paper with key answers

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61. C=O stretchings are very strong and easily observable bands in IR spectroscopy. However in the IR spectrum
of glucose C=O absorption band is not seen. Why
(a) In glucose, C=O group is not terminal
(b) In glucose C=O group is absent
(c) In glucose, hemiacetal group is present
(d) In glucose, hemiketal group is present

62. What is/are use/s of phenol coefficient
(a) Tocompare a disinfectant’s killing efficacy to that of phenol
(b) To determine the dilution at which the disinfectant is to be used
(c) To determine the purity of disinfectant
(d) All of the above

63. Arrange the following esters as per decreasing order of rate of saponification
(I) Ethyl benzoate
(II) Ethyl p- methoxybenzoate
(III) Ethyl p- chlorobenzoate
(IV) Ethyl p-nitrobenzoate
(a) I>II>III>IV
(b) IV>III>II>I
(c) IV>III>I>II
(d) II>IV>I>III

64. Which of the following statements about bentonite are CORRECT
(P) Gycerin is used to pre-wet the bentonite prior to mixing with water to form its gel
(Q) Aqueous bentonite suspensions retain their viscosity above pH 6 but are precipitated by acids
(R) MgO increase gel formation while alcohol in significant amounts can precipitate bentonite gel
(S) Betonite exhibits rheopexy
(a) P and Q (b) Q and R (c) P,Q and R (d) P, Q, R and S

65. Acid insoluble ash of a leaf is called as
(a) Earthy matter & silica (b) Inorganic content (c) Organic Content (d) All of the above

66. Grape fruit juice is P- glycoprotein and CYP40 enzyme inhibitor . if drug X is degraded by proteolytic enzymes, administration of grapefruit juice with X
(a) Increase bioavailability of X
(b) Decrease Bioavailability of X
(c) Does not affect bioavailability of X
(d) Cause unexpected action of X

67. Tannins give positive test for all of the following EXCEPT
(P) Goldebeater skin test (Q) Phenazone (R) Biuret test (S) FeCl3
(a) P and Q
(b) Q and R
(c) P, Q and R
(d) P,Q and S

68. Vigabatrin is a GABA analogue that potentiates action of GABA in the brain because it
(a) Binds to GABA receptor and acts as agonist
(b) Inhibits GABA transaminase
(c) Blocks NMDA receptor via the glycine binding site
(d) Inhibits neuronal reuptake of GABA from synapses

69. Drug that increases systolic B.P. but reduces diastolic B.P.
(a) Isoproterenol (b) Epinephrine (c) Nor Epinephrine (d) Propranol

70. Which of the following are characteristics for colloid mills
(P) Due to centrifugal forces, the mill undergoes periodical vibratory movement
(Q) Particles smaller than 1 μm can be obtained with them
(R) The main types of colloid mills are hammer , turbine and dial mills
(S) The principle of their operation is based on the abrasion of particles at high speed
(a) Only, P, Q and R are correct (b) Only P and R are correct
(c) Only Q and S are correct (d) P, Q, R and S are correct

71. Inflamation of soft tissue due to hyaluronidase is called as
(a) Tendinitis (b) Bursitis (c) Cellulitics (d) Cumulative Injury Disorder (CID)

72. The hydroxyl derivative of cymene is called as what
(P) Thymol (Q) Carvacrol (R) Menthol (S) Cumene
(a) P, Q, R and S (b) P, Q , and R (c) P and Q (d) Only P

73. Which of the following are the correct properties of ferroin? Ferroin is
(P) 1, 10-phnathroline
(Q) A bidentate ligand complex
(R) Red in reduced form
(S) Blue in oxidized form
(a) P and Q (b) R and S (c) P, R and S (d) P, Q, R and S

74. Each of the following is a glycosaminoglycan dengue fever is
(a) Chondroitin and dermatan
(b) Heparan and heparin
(c) Hyaluronic acid and keratin
(d) Keratin and chitin

75. If X is an equivalent of silver deposited is silver coulometer and Y is an equipment of copper deposited in copper coulometer when constant current is passed through the electrochemical cell for the same time which of the following is correct
(a) X =Y (b) X = 2Y (c) X = Y/2 (d) 2X =Y

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