NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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{E^0}\left( {N{i^{2 + }}/Ni} \right) = - 0.25V;\,{E^0}\left( {A{u^{3 + }}/Au} \right) = 1.50V

The emf of the voltaic cell

Ni/N{i^{2 + }}\left( {1.0M} \right)//A{u^{3 + }}\left( {1.0M} \right)/Au

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Correct option: C

1.75\,V

Option C is correct. The EMF of the voltaic cell is calculated by subtracting the standard reduction potential of the anode (Ni) from the standard reduction potential of the cathode (Au).

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