Question

When $H_{2}S$ gas is passed through nitric acid, the product is:

• A. rhombic sulphur
• B. prismatic sulphur
• C. amorphous sulphur
• D. monoclinic sulphur
• E. plastic sulphur

Answer 1

The correct option is C amorphous sulphur

Nitric acid is as oxidizing agent, when $H_{2}S$ is passed over nitric acid, is oxidises $S^{2-}$ to Colloidal Sulphur $S^0$ and amorphous sulphur is formed.

$H_{2}S+2HN{O}_3\to S+2N{O}_2+H_{2}O$