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प्रश्न
Pick the odd member from the list giving reasons:
Copper oxide, aluminium oxide, sodium oxide, magnesium oxide.
उत्तर
Copper oxide
Reason:
Copper oxide, because \[\ce{CuO}\] is less reactive can be reduced by \[\ce{C}\], \[\ce{CO}\] or by hydrogen whereas \[\ce{Al2O3}\], \[\ce{Na2O}\], \[\ce{MgO}\] are reduced by electrolysis.
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