MHT CET Chemistry question

Not in JEE Main or NEET syllabus

Gas mask is prepared on the basis of adsorption because

(A)it causes adsorption of poisonous gases on activated charcoalCorrect
(B)it causes absorption of gaseous particles
(C)it increases oxygen molecule around the atmosphere by decreasing concentration of poisonous gases
(D)Both (a) and (c)

Answer: (A)

Solution

A gas mask works because activated charcoal adsorbs poisonous gases on its surface; (b) is wrong as the process is adsorption and not absorption, and (c) is

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Question ID VK-062562