Mass Transfer
A binary mixture of benzene and cyclohexane is separated by

Ordinary distillation
Solvent extraction
Extractive distillation
Flash vaporisation

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

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

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