JEE Main 2023 — Chemistry Physical Chemistry

2023mcqmedium

The reaction occurs in which of the given galvanic cell?

$\frac{1}{2}{H}_{2}(g)+\mathrm{AgCl}(s)\rightleftharpoons {H}^{+}(\mathrm{aq})+{\mathrm{Cl}}^{-}(\mathrm{aq})+\mathrm{Ag}(s)$

Official previous-year question

Held on 8 Apr 2023 · Verified 6 Jul 2026.

Options

A
$\mathrm{Pt}|{H}_{2}(g)|\mathrm{HCl}({\mathrm{sol}}^{n})|\mathrm{AgCl}(s)|\mathrm{Ag}$
B
$\mathrm{Ag}|\mathrm{AgCl}(s)|\mathrm{KCl}({\mathrm{sol}}^{n})|{\mathrm{AgNO}}_{3}|\mathrm{Ag}$
C
$\mathrm{Pt}|{H}_{2}(g)|\mathrm{HCl}({\mathrm{sol}}^{n})|{\mathrm{AgNO}}_{3}({\mathrm{sol}}^{n})|\mathrm{Ag}$
D
$\mathrm{Pt}|{H}_{{}^{2}}(g)|\mathrm{KCl}({\mathrm{sol}}^{n})|\mathrm{AgCl}(s)|\mathrm{Ag}$

Did you get this right?

Solution

Oxidation is loss of electron and in a galvanic cell it occurs at anode. Reduction is gain of electron and in a galvanic cell it occurs at cathode.

At anode : $\frac{1}{2}{H}_{2}(g)\longrightarrow \underset{(\mathrm{aq})}{{H}^{+}}+{e}^{-}$

At cathode $\underset{(S)}{\mathrm{AgCl}}+\bar{e}\longrightarrow \mathrm{Ag}+\underset{\text{ (aq) }}{{\mathrm{Cl}}^{-}}$

Overall reaction

$\frac{1}{2}{H}_{2}(g)+\mathrm{AgCl}(s)\longrightarrow {H}^{*}+{\mathrm{Cl}}^{-}+\mathrm{Ag}(s)$

Cell representation :

Anode / Anode electrolyte || Cathodic electrolyte / Cathode.

The cell representation for the above cell will be

$\mathrm{Pt}|{H}_{2}(g)|\mathrm{HCl}({\text{ soln }}^{n})|\mathrm{AgCl}(s)|\mathrm{Ag}$

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Options

$\mathrm{Pt}|{H}_{2}(g)|\mathrm{HCl}({\mathrm{sol}}^{n})|\mathrm{AgCl}(s)|\mathrm{Ag}$

$\mathrm{Ag}|\mathrm{AgCl}(s)|\mathrm{KCl}({\mathrm{sol}}^{n})|{\mathrm{AgNO}}_{3}|\mathrm{Ag}$

$\mathrm{Pt}|{H}_{2}(g)|\mathrm{HCl}({\mathrm{sol}}^{n})|{\mathrm{AgNO}}_{3}({\mathrm{sol}}^{n})|\mathrm{Ag}$

$\mathrm{Pt}|{H}_{{}^{2}}(g)|\mathrm{KCl}({\mathrm{sol}}^{n})|\mathrm{AgCl}(s)|\mathrm{Ag}$

Solution

Oxidation is loss of electron and in a galvanic cell it occurs at anode. Reduction is gain of electron and in a galvanic cell it occurs at cathode.

At anode : $\frac{1}{2}{H}_{2}(g)\longrightarrow \underset{(\mathrm{aq})}{{H}^{+}}+{e}^{-}$

At cathode $\underset{(S)}{\mathrm{AgCl}}+\bar{e}\longrightarrow \mathrm{Ag}+\underset{\text{ (aq) }}{{\mathrm{Cl}}^{-}}$

Overall reaction

$\frac{1}{2}{H}_{2}(g)+\mathrm{AgCl}(s)\longrightarrow {H}^{*}+{\mathrm{Cl}}^{-}+\mathrm{Ag}(s)$

Cell representation :

Anode / Anode electrolyte || Cathodic electrolyte / Cathode.

The cell representation for the above cell will be

$\mathrm{Pt}|{H}_{2}(g)|\mathrm{HCl}({\text{ soln }}^{n})|\mathrm{AgCl}(s)|\mathrm{Ag}$

JEE Main 2023 — Chemistry Physical Chemistry

Options

Did you get this right?

Solution

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JEE Main Physical Chemistry in other years

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Organic Chemistry

Inorganic Chemistry

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JEE Main 2023 — Chemistry Physical Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

Inorganic Chemistry

Keep practicing Physical Chemistry