Question

When sulphur (S) reacts with oxygen gas (O₂), it produces:

• A. basic oxides.
• B. acidic oxides.
• C. amphoteric oxides.
• D. a salt.

Answer 1

The correct option is B acidic oxides.

Non-metals on reaction with oxygen gas produce non-metallic oxides. These non-metallic oxides on reaction with $H_{2}O$ give acidic substances.

Sulphur is a non-metal. Upon oxidation, it forms $S{O}_2$ and $S{O}_3$, which on reaction with water form acids- $H_{2}S{O}_3$ and $H_{2}S{O}_4$.