A redox reaction consists of oxidation and reduction half reactions. There is a loss of electron...
0A redox reaction consists of oxidation and reduction half reactions. There is a loss of electrons in oxidation and the species which loses electrons is reducing agent. Its oxidation number increases during oxidation. Similarly there is a gain of electrons during reduction and the species which gains electrons is an oxidising agent. Its oxidation number decreases during reduction. The number of electrons released during oxidation is equal to number of electrons gained during reduction.
When \( \mathrm{SO}_{2} \) is passed through \( \mathrm{KIO}_{3} \), the O.N. of iodine changes from
(A) \( +5 \) to 0
(B) 5 to \( -1 \)
(C) \( -5 \) to 0
(D) \( -7 \) to \( -1 \)
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