CBSE Class 10 Science 2016 Term 1 Paper

Question : 10

Total: 36

State which of the following chemical reactions will take place or not, giving suitable reason for each :
(a) Zn( s)+CuSO4(aq)→ZnSO4(aq)+Cu( s)
(b) Fe( s)+ZnSO4(aq)→FeSO4(aq)+Zn( s)
(c) Zn( s)+FeSO4(aq)→ZnSO4(aq)+Fe‌(s) ‌

Solution:

(b) Fe( s)+ZnSO4(aq)→FeSO4(aq)+Zn( s) is not possible, because Zn is more reactive than Fe so it cannot be replaced.

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