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CBSE Class 8 Answered

(i) Fe + CuSO4 FeSO4 + Cu (ii) Zn + FeSO4 ZnSO4 + Fe On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper, and iron.
Asked by Topperlearning User | 30 Apr, 2014, 03:16: PM
answered-by-expert Expert Answer

In the first reaction, Fe displaces Cu. Therefore, Fe is more reactive than Cu (reactivity of Fe> reactivity of Cu).

In the second reaction Fe is displaced by Zn. Therefore, Fe is less reactive than Zn (reactivity of Zn> reactivity of Fe).

Therefore, Zn is more reactive and Cu is least reactive.

Answered by | 30 Apr, 2014, 05:16: PM

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