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General Science Objective Questions and answer

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31.) Tetraethyl lead is used as ___

(A) Mosquito repellent
(B) Pain Killer
(C) Fire extinguisher
(D) Petrol additive

View Answer

Correct Answer: D.

32.) Which of the following is used in beauty parlours for hair setting?

(A) Phosphorus

View Answer

Correct Answer: B.

33.) Which of the following is a non-metal that remains liquid in room temperature?

(A) Bromine

View Answer

Correct Answer: A.

34.) Which of the following is the lightest metal?

A. Mercury                        B. Lithium

C. Lead                            D. Silver

  View Answer 

Correct Answer: B.


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