Q.5 A shiny brown substance X was heated in air to give a black compound Y, Y gave back X when gas was passed through it. [3] (i) Identify X and Y. (ii) Give equation for converting X into Y and Y into X. (iii) What are the type of reactions observed?
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मैं नहीं समझ सका इसे कृपया मुझे माफ कर सकते हैं अगले कयुसचन
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The substance X is copper. On heating in air, it forms copper oxide Y. When hydrogen gas is passed over black copper oxide then it turns brown as oxygen is removed by hydrogen.
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