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  • Which of the following is correct?Option: 1 <img alt="\mathrm{I_{2} \text { can oxidise } B r^{-}}" src="https://entrancecorner.oncodecogs.com/gif.la

Which of the following is correct?

Option: 1

\mathrm{I_{2} \text { can oxidise } B r^{-}}


Option: 2

\mathrm{I_{2} \text { can oxidise } C l^{-}}


Option: 3

\mathrm{C l_{2} \text { can oxidise } I^{-}}


Option: 4

\mathrm{B r_{2} \text { can oxidise } Cl ^{-}}


Answers (1)

best_answer

On the basis of Electrode potential data, the oxidising nature of halogens is 

\mathrm{F_2 > Cl_2 > Br_2 > I_2}

Thus, it becomes clear that lower halogen can oxidise higher halides into their respective halogens.

X_2 + X^{'-} \longrightarrow X^- + X^{'}_2

where X is the lower halogen and X^{'} is the higher halogen.

Thus, among the given reactions, the feasible reaction is 

\mathrm{Cl_2+2KI\rightarrow I_{2}+2KCl}

Hence, the correct answer is Option (3)

Posted by

Sanket Gandhi

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