MCQ
In the chemical reaction $C{l_2} + {H_2}S \to 2HCl + S$, the oxidation number of sulphur changes from
  • A
    $0$  to $2$
  • B
    $2$  to $ 0$
  • $-2 $ to $ 0$
  • D
    $-2$  to $ -1$

Answer

Correct option: C.
$-2 $ to $ 0$
(c) Oxidation state of sulphur in ${H_2}S$ is $-2,$  while it is zero in $‘S’$  i.e. in this reaction oxidation of sulphur and reduction of chlorine is takes place.

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