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I^(-) can be detected by violet colour i...

`I^(-)` can be detected by violet colour in `CS_(2)` layer obtained on adding chlorine water. However, on adding excess of `Cl_2` , the violet colour disappears. It is due to

A

the formation of interhalogen compound Icl

B

removal of `I_(2)` from `CS_(2)` layer by `Cl_2`

C

precipitation of `I_(2)` from solution

D

none of these

Text Solution

Verified by Experts

`underset(CS_(2) "layer")underset("Violet in")(I_(2))+Cl_(2) to underset("Colourless")(2ICl)`
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Knowledge Check

  • When chlorine water is added to an aqueous solution of sodium iodide in the presence of chloroform, a violet colouration is obtained. On adding more of chlorine water and vigorous shakinh, the violet colour disappear. This shows the conversion of …….. into .......

    A
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    B
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    C
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    D
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    A
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    B
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    D
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