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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEC
Chapter: Electrochemistry

Olympiad workbook · NSEC · Electrochemistry

The Galvanic cell can be represented as Zn / Zn^ 2+ (0.1 M) / / Cu^...

The Galvanic cell can be represented as

\mathrm{Zn} / \mathrm{Zn}^{2+}(0.1 \mathrm{M}) / / \mathrm{Cu}^{2+}(0.1 \mathrm{M}) / \mathrm{Cu}

. Among the following, the cell that can produce an EMF more than that of the Galvanic cell is (

\mathrm{E}^0

of

\mathrm{Zn}^{2+} / \mathrm{Zn}

and

\mathrm{Cu}^{2+} / \mathrm{Cu}

are -0.763 V and 0.337 V respectively)

Options

A $\mathrm{Zn} / \mathrm{Zn}^{2+}(0.1 \mathrm{M}) / / \mathrm{Cu}^{2+}(0.01 \mathrm{M}) / \mathrm{Cu}$
B $\mathrm{Zn} / \mathrm{Zn}^{2+}(1 \mathrm{M}) / / \mathrm{Cu}^{2+}(0.01 \mathrm{M}) / \mathrm{Cu}$
C $\mathrm{Zn} / \mathrm{Zn}^{2+}(0.01 \mathrm{M}) / / \mathrm{Cu}^{2+}(1 \mathrm{M}) / \mathrm{Cu}$
D $\mathrm{Zn} / \mathrm{Zn}^{2+}(0.01 \mathrm{M}) / / \mathrm{Cu}^{2+}(0.01 \mathrm{M}) / \mathrm{Cu}$

Correct answer

C. $\mathrm{Zn} / \mathrm{Zn}^{2+}(0.01 \mathrm{M}) / / \mathrm{Cu}^{2+}(1 \mathrm{M}) / \mathrm{Cu}$

Step-by-step solution

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