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Question: Answered & Verified by Expert
Oxidation state of iodine in $\mathrm{I}_3^{-}$is
ChemistryRedox ReactionsMHT CETMHT CET 2021 (21 Sep Shift 2)
Options:
  • A $-(1 / 3)$
  • B +4
  • C +5
  • D -3
Solution:
1266 Upvotes Verified Answer
The correct answer is: $-(1 / 3)$
$\mathrm{I}_3^{-}$
$\downarrow$
$\mathrm{x}$ (let oxidation state of iodine)
$$
3 x=-1
$$
$$
x=-1 / 3
$$

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