Q.
Which of the following metals will not react with solution of CuSO4 ?
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a
Fe
b
Zn
c
Mg
d
Ag
answer is D.
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Detailed Solution
EFe+2/Fe0,EZn+2/Zn0,EMg+2/Mg0are negativeFe,Zn and Mg can reduce Cu+2 to CuBut EAg+/Ag0>ECu+2/Cu0 Ag cannot reduce Cu+2 to Cu
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