The S.R.Ps of Cu2+/Cu, Hg2+/ Hg and Zn2+/Zn are respectively 0.34V, 0.85 V and – 0.76 V. The wrong statement is

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Cu reduces Hg2+

Zn reduces Cu2+

Hg reduces Zn2+

Zn reduces both Cu2+ and Hg2+

answer is C.

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Detailed Solution

Lower SRP reduces all Higher SRP values.SRP of Hg is higher than that of Zn. Hg cannot reduce Zn+2 but Zn can reduce Hg+2

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