Q. What is the oxidation number of chlorine in ${ClO}_{3}^{-}$?
A) +5
B) +3
C) +4
D) +2
Explanation
(a)
Oxidation number of Cl in ${ClO}_{3}^{-}.$
$ClO_{3} = -$1
$x + 3( - 2) = - 1$
$x = + 6 - 1$
$x = + 5$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.