Q. Oxidation number of P in $HP_{2}O_{7}^{-}$ ion is
A) $+ 5$
B) $+ 6$
C) $+ 7$
D) $+ 3$
Explanation
(b)
${HP}_{2}O_{7}^{- 2}$
$+ \ 1 + 2x - 2 \times 7 = - 1$
$x = + \ 6$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.