Multiple choice

One should not sleep in a closed room where a charcoal fire is burning as ____.

  1. it produces CO

  2. it produces C

  3. it produces O

  4. it produces H

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

One should not sleep in a closed room where a charcoal fire is burning as it produces CO. The produced CO will combine with the Hemoglobin present in the blood, which cause death of a person.