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8. A brown coloured substance X on heating changes to black coloured Y. Y on treatingwith hydrogen changes to 'X' again. Then identify X and Y. Write down the equationand name the reaction. |
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Answer» X is copper metal and y is copper oxide when copper oxide is HEATED with hydrogen it CHANGES to Copper metal again DUE to displacement reaction equation 1 shows that how copper metal is CHANGED to black COLOURED copper oxide and equation 2 shows that how copper oxide is changed into copper metal again . equation 1 is a combination reaction while equation 2 is a displacement reaction |
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