Question

In the estimation of sulphur, organic compound on treating with conc. $HN{O}_3$ is converted to

• A. $S{O}_2$
• B. $H_{2}S$
• C. $H_{2}S{O}_4$
• D. $S{O}_3$

Answer 1

The correct option is C $H_{2}S{O}_4$

In Carius method, sulphur of organic compound is converted into $H_{2}S{O}_4.$

$S+H_{2}O+3O\underset{HN{O}_3}{\overset{\Delta }{\to }}{H}_{2}S{O}_4$