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Science Quiz (for 12 to 16 years old): Quiz 1

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Chemical formula for water is

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Which of the following metals forms an amalgam with other metals?

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Chlorophyll is a naturally occurring chelate compound in which central metal is

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Brass gets discoloured in air because of the presence of which of the following gases in air?

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Which of the following is used in pencils?

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Which of the following is a non metal that remains liquid at room temperature?

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