Question

The oxidation numbers of $S$ in $S_8,S_2{F}_2$ and $H_{2}S$ respectively, are :

• A. $0,+1$ and $-2$
• B. $+2,+1$ and $-2$
• C. $0,+1$ and $+2$
• D. $-2,+1$ and $-2$

Answer 1

The correct option is A $0,+1$ and $-2$

$S_8$ : Oxidation number of $S=0$.
$S_2{F}_2:2x-2=0\Rightarrow x=1$; Oxidation number of $S=1$.
$H_{2}S:2+x=0\Rightarrow x=2$; Oxidation number of $S=-2$.
Hence, the oxidation numbers of $S$ in $S_8,S_2{F}_2$ and $H_{2}S$ respectively, are $0,+1$ and $-2$.