When `CS_(2)` layer containing both `Br_(2) " and" I_(2) (2 : 1)` is shaken with excess of chlorine `(Cl_(2))` water, the violet colour due to `I_(2)` disappears and a pale yellow colour appears in the solution. The disappearance of violet colour and appearance of pale yellow colour is due to the formation of :

Options

A. `I_(3^(-)) " and" Br_(2)` respectively.
B. `HIO_(3)` and BrCl respectively.
C. Icl and BrCl respectively.
D. `I^(-) " and" Br^(-)` respectively.

Answer

B

Explanation

`5Cl_(2)+I_(2) +6H_(2)O to 2HIO_(3) ("colourless")+10HCl`
`Br_(2)+Cl_(2) hArr 2BrCl`(pale yellow)