Select the true statements of the following

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Water vapor is adsorbed by anhydrous calcium chloride

Raw sugar refined because dirty substance is adsorbed by ammonia gas.

Organic dye molecules forms colorless filtrate because the colored molecules of dye is adsorbed by the charcoal.

Ammonia is adsorbed by water but absorbed by charcoal.

answer is C.

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Detailed Solution

Ammonia is a gas which is absorbed by water but adsorbed by charcoal.
Water vapor is absorbed by calcium chloride.
Organic dye has a vibrant color and when it is treated with activate charcoal and then filtered, the filtrate appears colorless because all the colored substances of organic dye is adsorbed on the surface of charcoal.
Decolorization of sugar takes place when aqueous solution of raw sugar is passed over activated charcoal because all colored substances are adsorbed by the charcoal.

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