A) \[Fe\]
B) \[Ag\]
C) \[Zn\]
D) \[Al\]
Correct Answer: B
Solution :
Since Ag is less reactive than Cu therefore it does not displace Cu from \[CuS{{O}_{4}}\] while other metals are more reactive, they displace Cu from \[CuS{{O}_{4}}\].
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