Q.

Correct statement among the following is

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Zns can reduce Mg2+aq

Mgs can reduce Na+aq

Fes can reduce Zn2+aq

Nas can reduce Cu2+aq

answer is D.

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Detailed Solution

EM+n/M0 values of Na, Mg, Zn, Fe, Cu are -2.71 V, -2.37 V, -0.76 V, -0.44 V and +0.34 V;Metal with high negative SRP(low SRP) reduces the metal ion with low negative SRP(high SRP);Thus sodium can reduce cupric ion from its solution;

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