Q.

When Zn piece is kept in CuSO4 solution, copper gets precipitated because :

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a

Standard reduction potential of zinc is more than copper

b

Standard reduction potential of zinc is lesser than copper

c

Atomic number of zinc is larger than copper

d

Atomic number of zinc is lower than copper

answer is B.

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Detailed Solution

Metal electrode with lower reduction potential displaces metal ion having higher reduction potential.SRP of Zn electrode is lesser than SRP of Cu electrode, Zn precipitates Cu.
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