A brown substance 'X' on heating in air forms a substance 'Y'. When hy – InterviewSolution

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1.	A brown substance 'X' on heating in air forms a substance 'Y'. When hydrogen gas is passed over heated 'Y', it again changes back into 'X'. Name the substances X and Y.
Answer» SOLUTION :X: copper METAL , Y: Copper (II) oxide.

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