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Copper found in nature as Cu2S can be obtained from its ore by

Question
Copper found in nature as Cu2S can be obtained from its ore by
Electrolysis only
Just heating in air
Reaction with acid alone
It cannot be extracted this way
Answer
Just heating in air
Detailed Explanation
Since copper is low in the activity series, copper can be obtained from Cu2S by simply heating it in air.
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