See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

(A)       3 4 4 6 6 3 Fe K Fe CN Fe Fe CN Potassium Prussian blue ferrocyanide Blue colour            (B)       2 3 3 6 6 2 Fe K Fe CN Fe Fe CN Potassium Turnbull blue ferricyanide Blue colour            (C)     2 4 2 6 6 Whiteprecipitate Fe K Fe CN K Fe Fe CN             (D)     2 4 2 6 6 Cu K Fe CN Cu Fe CN Red Brown precipitate              Only (C) option is incorrect. SECTION – B