MHT CET Chemistry question
V, V. The emf of the voltaic cell, \mathrm{Ni/Ni^{2+}(1.0\ M) \,||\, Au^{3+}(1.0\ M)\,|\,Au} is
Answer: (C)
Solution
E_{cell} = E^\circ_{Au^{3+}/Au} - E^\circ_{Ni^{2+}/Ni} = 1.50 - (-0.25) = 1.75 V; 1.25 V subtracts with
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