CBSE Class 12 Chemistry 2023 Delhi Set 3 Solved Paper

Question : 1

Total: 13

SECTION - A

Consider the following standard electrode potential values:
Sn(aq)2++2e−→Sn( s)E0 =−0.14V
Fe3+‌(aq)+e−→Fe2+‌(aq)E0 =+0.77V
What is the cell reaction and potential for the spontaneous reaction that occurs?

2Fe2+(aq)+Sn2+(aq)→2Fe3+‌(aq) +Sn(s)E0=−0.91V
2Fe3+(aq)+Sn(s)→2Fe2+(aq) +Sn2+(aq)E°=+0.94V
2Fe2+(aq)+Sn2+(aq)→2Fe3+‌(aq) +Sn(s)E0=+0.91V
2Fe3+(aq)+Sn(s)→2Fe2+(aq) +Sn2+(aq)E°=+1.68V

Solution: 👈: Video Solution

E°=EC−Ea
=0.77−(−0.14)=+0.94V

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