Mass Transfer
Which of the following processes is not an example of adsorption applied to gaseous separations?

Removal of objectionable odour and impurities from industrial gases
Dehumidification of air and gas
Recovery of valuable solvent vapors from dilute mixture with air and other gases
Decolouration of yellow glycerene

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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
Fine solids can not be leached in a Pachuka tank
Very high temperature is not needed for the leaching of sugar beet
Door classifier can be used for leaching of coarse solids

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Mass Transfer
In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point.

Reboiler load is the same in both the cases but condenser load is higher in case (ii)
Condenser load is the same in both the cases but reboiler load is higher in case (ii)
Condenser and reboiler loads are the same in both the cases
Both condensor and reboiler loads are higher in case (ii) as compared to case (i)

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