Q. A simple method to remove peroxides from ethes is to treat them with an aqueous solution of
A) KI
B) KCNS
C) $Na_{2}S_{2}O_{3}$
D) $Br_{2}$
Explanation
(a)
Ether peroxide oxidises KI into $I_{2}$ and itself gets reduced to ether. Therefore, KI is added to remove peroxides from ethers.
$2I^{-} \rightarrow I_{2} + 2e^{-}$
Ether peroxide+$2e^{-} \rightarrow ether + O_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.