Question

In which of the compound sulphur exhibits an oxidation state of -2 ?

• A. $H_{2}S$
• B. $S{O}_2$
• C. $H_2{S}_2{O}_3$
• D. $H_{2}S{O}_5$

Answer 1

The correct option is A $H_{2}S$

Hydrogen is +1,So $x$ + $2\times (+1)$= $0$

$x$ = $-2$

so sulfur should be -2

S in $H{2}_S$ is having -2 oxidation state

Hence option A is correct.