When chlorine water is added to an aqueous solution of potassium halide in the presence of chloroform, a violet colour is obtained on adding more of chlorine water, the violet colour disappears, and a colourless solution is obtained. This test confirms the presence of the following in aqueous solution

Options

A. Iodide
B. Bromide
C. Chloride
D. Iodide and bromide

Explanation

`2I^(-) +Cl_(2) to underset("Violet")(I_(2))+2Cl^(-)`
`underset("Excess")(5Cl_(2))+I_(2)+6H_(2)O to underset("Colorless")(2HIO_(3))+10HCl`