Bromine can be liberated from potassium bromide solution by the action of :

iodine solution

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chlorine water

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sodium chloride

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potassium iodide

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Solution

The correct option is B chlorine water
Bromine can be liberated from potassium bromide solution by the action of chlorine water
$2 K B r + C l_{2} \to 2 K C l + B r_{2}$
The reaction is based on the fact that Cl2 has greater oxidizing power than Br2 and therefore can oxidize Br from KBr
Hence option B is correct.

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