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Q.

The S.R.Ps of Cu2+ / Cu, Hg2+ / Hg and Zn2+ / Znare respectively 0.34V, 0.85Vand −0.76V .The wrong statement is

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a

Hg reduces Zn2+

b

Cu reduces Hg2+

c

Zn reduces Cu2+

d

Zn reduces both Cu2+ and Hg2+

answer is C.

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Detailed Solution

Oxidizing power increases reducing power decreases so mercury reduction potential is more than zinc. So it cannot reduces zinc

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