Which reaction is not feasible?

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Question

(B) The reaction $2KBr + I_2 	o 2KI + Br_2$ is not feasible.In this reaction,$I_2$ would need to act as an oxidizing agent to oxidize $Br^-$ to $Br_2

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$2KBr + I_2 	o 2KI + Br_2$

Vedclass · Answer

(B) The reaction $2KBr + I_2 	o 2KI + Br_2$ is not feasible.In this reaction,$I_2$ would need to act as an oxidizing agent to oxidize $Br^-$ to $Br_2$.However,the standard reduction potential of $Br_2$ is higher than that of $I_2$,meaning $Br_2$ is a stronger oxidizing agent than $I_2$.Therefore,$I_2$ cannot displace $Br^-$ from its salt solution,making the reaction non-spontaneous.

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