JEE Main Chemistry question

A salt solution is treated with chloroform drops and is shaken with chlorine water. The chloroform layer becomes violet; the solution contains:

(A)
(B)
(C)
(D)Correct

Answer: (D)

Solution

Chlorine water oxidises iodide ion to free iodine: . The liberated iodine dissolves preferentially into the chloroform layer, imparting the characteristic violet/purple

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Question ID VK-148253