(b) ${CuSO}_{4} + 2KI \longrightarrow \ {Cul}_{2} + \ K_{2}{SO}_{4}$ $2\ {Cul}_{2}\ \longrightarrow \ {Cu}_{2}I_{2}\ + \ I_{2}$ cuprous iodide white ppt.
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.