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Question

In which of the following case, increase on concentration of ion cause increase in Ecell?

A
Pt(H2)H+(aq)
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B
Pt|Quinhydrone|H+(aq)
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C
Ag|Ag+(aq)
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D
Ag,AgCl|Cl(aq)
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Solution

The correct option is D Ag,AgCl|Cl(aq)
(a) 12H2(g)H+(aq)+e
Ecell=Eocell0.0591 log [H+]
(c) Ag(s)Ag+(aq)
Ecell=Eocell0.0591log[Ag+]
(d) Ag(s)+Cl(aq)AgCl(s)+e
Ecell=Eocell0.0591log1[Cl].
Thus, in case(d), the Ecell increases with increase in the concentration of ions.
734528_670556_ans_4ef0e74f9d524109849111a3f5064a14.png

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