Question

The oxidation number of sulphur 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

Answer: (A)

$0,+1$ and $-2$

The oxidation number of sulphur in $S_8,S_2{F}_2$ and $H_{2}S$ respectively, are $0,+1$ and $-2$
(1) Let x be the oxidation number of S in $S_8$.
$8X=0$
$X=0$
(2) Let x be the oxidation number of S in $S_2{F}_2$
$2X-2=0$
$X=+1$
(3) Let x be the oxidation number of S in $H_{2}S$
$X+2=0$
$X=-2$