Oxidation state of iodine in $\mathrm{I}_3^{-}$is
Oxidation state of iodine in $\mathrm{I}_3^{-}$is
- $-(1 / 3)$
- +4
- +5
- -3
Solution
$\mathrm{I}_3^{-}$
$\downarrow$
$\mathrm{x}$ (let oxidation state of iodine)
$3 x=-1$
$x=-1 / 3$
Asked in: MHT CET 2021 (21 Sep Shift 2)
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