Select the strongest reducing agent from amongst the substances involved in the following half-reactions. Cl2(g)+2e−→2Cl−(aq)+1.36V Br2(g)+2e−→2Br−(aq)+1.09V Sn2++2e−→Sn−0.14V
A
Cl−
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B
Br−
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C
Sn
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D
Sn2+
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Solution
The correct option is ACl− The strongest reducing agent should have the lowest reduction potential.
The reduction potential increases in the following order,