A substance that will reduce ${\rm{A}}{{\rm{g}}^ + }$ to Ag but will not reduce ${\rm{N}}{{\rm{i}}^{2 + }}$ to Ni is :

NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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A substance that will reduce

\mathrm{A}{\mathrm{g}^ + }

to Ag but will not reduce

\mathrm{N}{\mathrm{i}^{2 + }}

to Ni is :

View answer and explanation

Correct option: B

Option B (Pb) is correct because Pb has a standard reduction potential between that of Ag+ and Ni2+, allowing it to reduce Ag+ but not Ni2+.

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