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
Decolouration of yellow glycerene
Dehumidification of air and gas
Recovery of valuable solvent vapors from dilute mixture with air and other gases

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Mass Transfer
Entrainer used in azeotropic distillation should

Form a new azeotrope of low relative volatility with one of the constituents of the mixture
Have high latent heat of vaporisation
Have high viscosity to provide high tray efficiency
Form a low boiling azeotrope with one of the constituents of the mixture

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