Q. Iodine is fromed when KI reacts with solution of
A) CuSO_{4}
B) (NH_{4})_{2} SO_{4}
C) ZnSO_{4}
D) FeSO_{4}
Explanation
(a)
Iodine $I^{-}$ being a strong redcing agent reduces Cu^{2+} ions to Cu^{+} ions and itself gets oxidized to iodine.
2 CuSO_{4} +4KI⟶Cu_{2}I_{2}+I_{2}+2K_{2}SO_{4}
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.