why we use charcoal layer in aqua silencer to purify the gases??

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why we use charcoal layer in aqua silencer to purify the gases??..

Answer / mahesh

The charcoal layer has more adsorbing capacity because of its more surface area. Its surface area gets increases when it is produced by heating the charcoal above 1500 oC for several hours in a burner. It is also known as activated charcoal and also it has free valancies.°°

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