UPSC CSE Prelims

Chemistry Basics question bank (General Science)

Practice 10 free UPSC CSE Prelims General Science - Chemistry Basics questions with answers and step-by-step solutions.

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Q1.

Which one of the following is used as a moderator in nuclear reactors to slow down fast-moving neutrons?

Topic: Chemistry Basics | Source: AI Generated (UPSC CSE Prelims) | Status: pending review

(A)
Cadmium
(B)
Heavy water
(C)
Boron
(D)
Plutonium
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Q2.

Permanent hardness of water can be removed by adding which of the following substances?

Topic: Chemistry Basics | Source: AI Generated (UPSC CSE Prelims) | Status: pending review

(A)
Common salt
(B)
Washing soda
(C)
Baking soda
(D)
Vinegar
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