JEE Main & Advanced
Chemistry
Analytical Chemistry
Question Bank
Critical Thinking Analytical
question_answer
Where chlorine water is added to an aqueous solution of potassium halide in 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 [CPMT 1990]