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  4. The number of Faradays needed to reduce 4 g equivalents of Cu2+ to Cu metal will be

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Q. The number of Faradays needed to reduce $4\, g$ equivalents of $Cu^{2+}$ to $Cu$ metal will be

VITEEEVITEEE 2010

Solution:

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Thus, to reduce $4\, g$ equivalent of $Cu^{2+}$ into $Cu$ four Faradays are required.