Consider the cell $P t | C l_{2} (g) | H C l_{(a q)} | | H B r_{(} a q) | B r_{2} (l) | P t .$ If concentration of HCl is increased, the cell potential will ?

increase

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decrease

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remain the same

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become maximum

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Solution

The correct option is D increase
$P t | C l_{2} (g) | H C l (a q) | | H B r (a q) | B r_{2} (l) | P t$
if the concentration of $H C l$ is increased , the cell potential will increase. because the reaction rate will increases.

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