Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
What is the purpose of using a gas mask in coal mines?
ChemistrySurface ChemistryNEET
Options:
  • A To enhance visibility
  • B To remove dust particles
  • C To adsorb poisonous gases
  • D To supply oxygen
Solution:
2687 Upvotes Verified Answer
The correct answer is: To adsorb poisonous gases
The paragraph mentions that gas masks, which consist of activated charcoal or a mixture of adsorbents, are used for breathing in coal mines to adsorb poisonous gases.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.