Q. KI and ${CuSO}_{4}$ solution when mixed, give
A) $CuI_{2} + \ K_{2}SO_{4}$
B) $Cu_{2}I_{2} + \ K_{2}SO_{4}$
C) $K_{2}SO_{4} + \ Cu_{2}I_{2} + I_{2}$
D) $K_{2}SO_{4} + \ CuI_{2} + I_{2}$
Explanation
(c)
$2KI + CuSO_{4} \longrightarrow Cul_{2} + K_{2}SO_{4}$
unstable
$\ \ \ \ \ \ \ \ \ \ \ 2Cu_{2}I_{2}\ \longrightarrow Cu_{2}I_{2} + I_{2}$
Hence, solution contains $Cu_{2}I_{2},\ I_{2}\ and\ K_{2}SO_{4}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.