General Science - Questions (Section-1)
61Potassium Permanganate is used for purifying drinking water, because
A. it is a sterilising agentB. it dissolves the impurities of water
C. it is a reducing agent D. it is an oxidising agent
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62Which of the following is an element?
A. RubyB. Sapphire
C. Emerald D. Diamond
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63Which of the following metals remain in liquid for under normal conditions?
A. RadiumB. Zinc
C. Uranium D. Mercury
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