Question

Complete and balance the following equations:
(i) Cu + AgNO3 →
(ii) Mg + CuSO4 →
(iii) Mg + ZnSO4 →
(iv) Mg + FeSO4 →​

Answer 1

1=CuNO3+Ag
2=MgSO4+Cu
3=MgSO4+Zn
4=MgSO4+Fe

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Answer 2

Answer:

(I.) Cu + AgNO → CuNO3 + Ag

(II.) Mg + CuSO4 → MgSO4 + Cu

(III.) Mg + ZnSO4 → MgSO4 + Zn

(IV.) Mg + FeSO4 → MgSO4 + Fe

Explanation:

All the four are single displacement reactions which can be easily solved using the reactivity series.

Mg > Zn > Fe > Cu > Ag

Being more reactive the more reactive element displaces the less reactive element to form its own salt compound.