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Questions  

For the reaction, Mn+aq+ne-M(s), select the best suitable representation of Nernst equation, when the solid M is taken.

a
EMn+/M=E(Mn+/M)o-RTnFIn MMn+
b
EMn+/M=E(Mn+/M)o-RTnFIn 1Mn+
c
EMn+/M=E(Mn+/M)o-RTnFIn Mn+M
d
EMn+/M=E(Mn+/M)o-RTnFIn Mn+

detailed solution

Correct option is B

Electrode potential of an electrode is measured with respect to standard hydrogen electrode by the expressionEMn+/M=EMn+/Mo-RTnFIn MMn+but concentration of solid M is taken as unity So,           EMn+/M=EMn+/Mo-RTnFIn 1Mn+

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