General Knowledge - General Science

Exercise : General Science - Elements and Metals

61.

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

Radium

Zinc

Uranium

Mercury

Answer: Option

Explanation:

No answer description is available. Let's discuss.

62.

Potassium Permanganate is used for purifying drinking water, because

it is a sterilising agent

it dissolves the impurities of water

it is a reducing agent

it is an oxidising agent

Answer: Option

Explanation:

No answer description is available. Let's discuss.

63.

Which of the following is an element?

Ruby

Sapphire

Emerald

Diamond

Answer: Option

Explanation:

No answer description is available. Let's discuss.

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