Question

What is the role of activated charcoal in gas masks used in mines?

• A. It acts as an adsorbent for poisonous gases present in coal mines.
• B. It acts as an adsorbent for coal particles present in coal mines.
• C. It acts as a mask through which exhaled gases are diffused out.
• D. It acts as a base for scattering the light.

Answer 1

Answer: (A)

It acts as an adsorbent for poisonous gases present in coal mines.

• Gas mask generally consists of activated charcoal or mixture of adsorbents is usually used for breathing in coal mines.
  
• Activated charcoal acts as adsorbent which adsorbs other gases on its surface. In Gas masks, they adsorb poisonous gases and hence prevent various occupational hazards.