General Knowledge - General Science

Exercise :: General Science - Elements and Metals

61. 

Which of the following metals remain in liquid for under normal conditions?

A. Radium
B. Zinc
C. Uranium
D. Mercury

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

62. 

Potassium Permanganate is used for purifying drinking water, because

A. it is a sterilising agent
B. it dissolves the impurities of water
C. it is a reducing agent
D. it is an oxidising agent

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

63. 

Which of the following is an element?

A. Ruby
B. Sapphire
C. Emerald
D. Diamond

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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