When ${\rm{C}}{{\rm{l}}_2}$ water is added to an aqueous solution of potassium halide in presence of chloroform a violet colour is obtained. On adding more of ${\rm{C}}{{\rm{l}}_2}$ water, the violet colour disappears and a colourless solution is obtained. This test confirms the presence of the following in aqueous solution:

NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Analyzing +4 | -1

When

\mathrm{C}{\mathrm{l}_2}

water is added to an aqueous solution of potassium halide in presence of chloroform a violet colour is obtained. On adding more of

\mathrm{C}{\mathrm{l}_2}

water, the violet colour disappears and a colourless solution is obtained. This test confirms the presence of the following in aqueous solution:

View answer and explanation

Correct option: A

Iodide

Option A (Iodide) is correct because the violet color in chloroform indicates the presence of iodine (

I_2

), which is formed by the oxidation of iodide ions by chlorine water.