See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

      3 Fe 2 3 2 2 2 3 2 3 4 6 2 neutral Violet complex Colourless 2S O Fe Fe S O 2Fe S O                      2 2 3 I excess Violet Brown F 2KI 2KF I I           3 2 6 6 Turnbull's blue Permanent colour Fe Fe CN Fe Fe CN                   