Mass Transfer
Absorption accompanied with chemical reaction is exemplified by the absorption of

Benzol present in coke oven gas by wash oil
SO₂ in alkaline solution
All of these
Ammonia in water

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Mass Transfer
Pick out the wrong statement pertaining to leaching.

Vegetable seeds can be leached in either of Bollman extractor, Rotocel or Kennedy extractor
Door classifier can be used for leaching of coarse solids
Very high temperature is not needed for the leaching of sugar beet
Fine solids can not be leached in a Pachuka tank

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Mass Transfer
Steam distillation is not recommended to be used, if the

Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature
Liquids decompose, if distilled directly at atmospheric pressure
Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature
Azeotropic mixture is to be separated and the final product is miscible with water

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