Question

When $H_{2}S$ is passed through II group sometimes solution becomes milky. It indicates the presence of :

• A. Acidic salt
• B. An oxidising agent
• C. Thiosulphate
• D. A reducing agent

Answer 1

Answer: (B)

An oxidising agent

For the solution to become milky, $H_{2}S$ gas must be oxidised to $S{O}_2$ when $H_{2}S$ is passed through II group which gives the milky appearance.

So, option B is the correct answer.