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Which of the following statement(s) is / are correct ?

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A chemical compound always consists of the different elements combined together in a definite proportion

Matter can neither be created nor destroyed

Total mass of the substances before the reaction is equal to after the reaction

Two elements combine to form only one compound

answer is D.

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Detailed Solution

A chemical compound always consists of the different elements

combined together in a definite proportion

Matter can neither be created nor destroyed

Two elements combine to form only one compound

Total mass of the substances before the reaction is equal to after the

reaction.

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