1.

Which of the following gases present in a polluted area will be absorbed most easily on the charcoal gas mask ?A. `H_(2)`B. `O_(2)`C. `N_(2)`D. `SO_(2)`

Answer» Correct Answer - D
Easily liquefiable gases like `CO_(2), NH_(3), SO_(2)` , etc. are more easily absorbed than the elemental gases like `H_(2), N_(2), O_(2)` , etc.


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