GATE - Life Sciences Previous Paper
1. The Headmaster ___________ to speak to you. Which of the following options is incorrect to complete the above sentence?
(A) is wanting
(B) wants
(C) want
(D) was wanting
Ans. (C)
2. Mahatama Gandhi was known for his humility as
(A) he played an important role in humiliating exit of British from India.
(B) he worked for humanitarian causes.
(C) he displayed modesty in his interactions.
(D) he was a fine human being.
Ans. (C)
3. Velocity of an object fired directly in upward direction is given by V= 80−32t, where t (time) is in seconds. When will the velocity be between 32 m/sec and 64 m/sec?
(A) (1, 3/2) (B) (1/2, 1)
(C) (1/2, 3/2) (D) (1, 3)
Ans. (C)
4. All professors are researchers Some scientists are professors Which of the given conclusions is logically valid and is inferred from the above arguments:
(A) All scientists are researchers
(B) All professors are scientists
(C) Some researchers are scientists
(D) No conclusion follows
Ans. (C)
5. The type of electronic transition responsible for the yellow colour of K2CrO4 is
(A)metal to ligand charge transfer
(B)ligand to metal charge transfer
(C)intra-ligand charge transfer
(D)d-d transition
Ans. (B)
6. The number of 2-center2-electron bonds in anhydrous AlCl3 is ___________
(A) 8 (B) 2
(C) 4 (D) 3
Ans. (A)
7. When dissolved in water, the number of H+ ions released from a molecule of H3BO3is _________
(A) 2 (B) 4
(C) 1 (D) 5
Ans. (C)
8. In NaCl crystal, the arrangement and coordination number of the ions are
(A)fcc and 6 (B) fcc and 4
(C) hcp and 6 (D) hcp and 4
Ans. (A)
9. Iodine forms an anionic species Q in aqueous solution of iodide(I-). The number of lone pair(s) of electrons on the central atom of Q is __________
(A) 3 (B) 2
(C) 1 (D) 4
Ans. (A)
10. The rate of a chemical reaction is tripled when the temperature of the reaction is increased from 298 K to 308 K. The activation energy (in kcal mol-1 K-1, up to one decimal place) for the reaction is(Given R = 1.987cal mol-1 K-1 ) _____________
(A) 19.2 to 20.0 (B) 19.8 to 20.2
(C) 19.3 to 19.6 (D) 19.5 to 20.3
Ans. (B)
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