NCERT Class XII Chemistry <br> Chapter - Electrochemistry <br> Questions with Solutions

NCERT Class XII Chemistry
Chapter - Electrochemistry
Questions with Solutions

Question : 20

Total: 32

Can you store copper sulphate solution in a zinc pot ?

Solution:

E°Zn2+∕ Zn=−0.76V,
E° Cu2+∕Cu=0.34V
We have to check whether the following reaction takes place or not.

Zn(s)+CuSO4(aq) ––––––▶ZnSO4(aq)+Cu(s)

E°cell=E° Cu2+∕Cu−E°Zn2+∕ Zn
=0.34V–(–0.76V)=1.1V
Since E°cell is positive, the reaction takes place and we cannot store CuSO4solution in a zinc pot.

Go to Question:

Prev Question

Next Question