Science GK Questions and Answers for SSC Exam
General Science Questions
Q.21 The gas which turns limewater milky is
(A) carbon dioxide
(B) carbon monoxide
(C) ammonia
(D) nitrogen dioxide
Ans . A
Q.22 Which of the following is the lightest gas?
(A) hydrogen
(B) helium
(C) xenon
(D) radon
Ans . A
Q.23 Hydrogen is not found in atmosphere because
(A) It is highly inflammable
(B) It is the lightest gas
(C) It is absorbed by plants
(D) It immediately combines with oxygen to form water
Ans . B
Q.24 The gas used for filling weather balloons is
(A) Helium
(B) Hydrogen
(C) Air
(D) Nitrogen
Ans . B
Q.25 What is the chemical name of Laughing Gas?
(A) Silver nitrate
(B) Sodium carbonate
(C) Calcium sulphate
(D) Nitrous oxide
Ans . D
Q.26 The coloured discharge tubes for advertisement mainly contain
(A) Xenon
(B) Argon
(C) Helium
(D) Neon
Ans . D
Q.27 Which one of the following noble gases is not found in the atmosphere (negligible quantity)?
(A) Argon
(B) Krypton
(C) Radon
(D) Xenon
Ans . C
Q.28 For respiration in deep sea, divers use mixture of
(A) Oxygen and helium
(B) Oxygen and hydrogen
(C) Oxygen and carbon dioxide
(D) Oxygen and nitrogen
Ans . B
Q.29 Gases used to prepare Ammonia gas are
(A) Nitrogen and Oxygen
(B) Nitrogen and Oxide
(C) Nitrogen and Hydrogen
(D) Nitrogen and Carbon
Ans . C
Q.30 Which one of the following gases is opaque to outgoing terrestial radiation but transparent to incoming solar radiation?
(A) Oxygen
(B) Carbondioxide
(C) Nitrogen
(D) Helium
Ans . B
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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