The reaction 1/2H2(g)+AgCl(s)→H⨁(aq)+Cl⊝(aq)+Ag(s) occurs in the galvanic cell:
A
Ag|AgCl(s)|KCl(sol)|AgNO3|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 APt|H2(g)|HCl(sol)|AgCl(s)|Ag 12Hg2(g)+AgCl(s)→H⨁(aq)+Cl⊝(aq)+Ag(s) There is oxidation of hydrogen and reduction of silver; therefore, it occurs in the following cell: Pt|H2(g)|HCl(sol)|AgCl(s)|Ag