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Gas mask is prepared on the basis of adsorption becauseA. it causes absorption of poisonous gases on activated charcoalB. it causes absorption of gaseous particleC. it increases oxygen molecule around the atmosphere by decreasing concentration of poisonous gasesD. Both (a) and (c) |
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Answer» Correct Answer - D Poisonous gases get adsorbed by activated charcoal hence , concentration of poisonous gases around atmosphere decreases and concentration of oxygen increases . |
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