Give an example of oxidation of halide by another halogen. Explain the feasibility of the reaction.

Answer

`2KI(aq.)+Cl_2 to 2KCl(aq.) +I_2`
In the reaction `Cl_2` oxidises iodide ion (-1 oxidation state ) to `I_2` (0 oxidation state ). `Cl_2` has higher oxidation potential than `I_2` and thus oxidises iodide to iodine getting itself reduced to chloride ion. Similarly,
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