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Question

Each of these solution is added to a mixture of aqueous solutions of iodide and chloroform (CHCl3), separately. Which will give a positive test for iodine when the solutions are vigorously mixed?

A
NaCI solution
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B
NaBr solution
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C
chlorine water
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D
bromine water
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Solution

The correct options are
C chlorine water
D bromine water
Chlorine water and bromine water when added to a mixture of aqueous solutions of iodide and chloroform,free iodine gas of purple/violet colour is liberated.
2I+Cl2I2(purple/violet)
2I+Br2I2(purple/violet)

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