For the following cell, standard potential of copper electrode in $0.337 \mathrm{~V}$ and standard cell…

For the following cell, standard potential of copper electrode in $0.337 \mathrm{~V}$ and standard cell potential is $0.463 \mathrm{~V}$ $\mathrm{Cu}\left|\mathrm{Cu}^{2+}(1 \mathrm{M}) \| \mathrm{Ag}^{+}(1 \mathrm{M})\right| \mathrm{Ag}$ What is the standard potential of silver electrode?
  1. $-0.126 \mathrm{~V}$
  2. $0.800 \mathrm{~V}$
  3. $-0.463 \mathrm{~V}$
  4. $0.126 \mathrm{~V}$

Solution

$\mathrm{E}_{\mathrm{cell}}^{0}=0.463 \mathrm{~V}, \quad \mathrm{E}_{\mathrm{Cu}}^{0}=0.337 \mathrm{~V}$ $\mathrm{E}_{\mathrm{cell}}^{0}=\mathrm{E}_{\mathrm{Ag}}^{0}-\mathrm{E}_{\mathrm{Cu}}^{0}$ $\therefore \mathrm{E}_{\mathrm{Ag}}^{0}=\mathrm{E}_{\mathrm{cell}}^{0}+\mathrm{E}_{\mathrm{Cu}}^{0}=0.463+0.337=0.800 \mathrm{~V}$

Asked in: MHT CET 2020 (15 Oct Shift 2)

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