Friday, April 26, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

General Science (Chemistry) MCQs For WBCS Prelims and Mains P1

Chemistry - 01

1. The highest amount known element is
(A) Hydrogen
(B) Oxygen
(C) Argon
(D) Helium.

Correct Answer: [B] Oxygen.
2. Which set of condition represents the easiest way to liquify a gas?
(A) Low-temperature & low pressure.
(B) High-temperature & high pressure.
(C) Low-temperature & high-pressure.
(D) Low-temperature & low pressure.

Correct Answer: [C] Low-temperature & high-pressure..
3. The most abundant rare gas in the atmosphere is
(A) Argon
(B) Xenon
(C) Helium
(D) Neon.

Correct Answer: [A] Argon.
4. Water gas is a mixture of
(A) Carbon monoxide and Nitrogen
(B) Carbon dioxide and Nitrogen
(C) Carbon monoxide and Hydrogen
(D) Carbon dioxide and Hydrogen.

Correct Answer: [C] Carbon monoxide and Hydrogen.
5. Which of the following gasses is most responsible for recent death in AMRI, Kolkata?
(A) Methane
(B) Hydrogen sulfide
(C) Carbon dioxide
(D) Carbon monoxide.

Correct Answer: [D] Carbon monoxide..


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