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Question

A reaction:


12H2(g)+AgCl(s)H(aq)+Cl(aq)+Ag(s) occurs in a galvanic cell.

The structure of the cell will be:

A
Ag,AgCl(s)|KCl(sol)|AgNO3(sol),Ag
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B
Pt,H2(g)|HCl(sol)|AgNO3(sol),Ag
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C
Pt,H2(g)|HCl(sol)|AgCl(s),Ag
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D
Pt,H2(g)|KCl(sol)|AgCl(s),Ag
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Solution

The correct option is C Pt,H2(g)|HCl(sol)|AgCl(s),Ag
The cell notation is
Pt,H2(g)|HCl(sol)|AgCl(s),Ag

The cell reaction is
12H2(g)+AgCl(s)H(aq)+Cl(aq)+Ag(s)

Hydrogen is oxidized, hence, in the cell notation, it is written on left hand side.
Silver is reduced, hence, in the cell notation, it is written on right-hand side.
Silver electrode is in contact with AgCl and hydrogen gas is in contact with HCl solution.
Option C is correct.

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