Question

The oxidation state of sulphur in $H_2{S}_2{O}_7$ is

• A. $+4$
• B. $+6$
• C. $+5$
• D. $+7$

Answer 1

Answer: (B)

Let, the oxidation state of sulphur in $H_2{S}_2{O}_7$ be $x$

$\therefore 2(+1)+2(x)+7(-2)=0$

$2+2x-14=0$

$2x=12x=+6$