Q.

ENi+2/Ni0 = −0.25V;   EPt,12Cl2/Cl−0 = +1.36V     then the spontaneous reaction involves

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a

Oxidation of Ni

b

Reduction of Ni+2

c

Oxidation of Cl-

d

All the above statements are correct

answer is A.

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Detailed Solution

SRP of Nickel electrode is less .. It acts like anodeSRP of Chlorine electrode is high.. It acts like cathode∴ At  anode  Nis → Ni+2aq+2e−At  cathode  Cl2g+2e−→ 2Cl−aqNis +Cl2g → Ni+2aq+2Cl−aq
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