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What are the two processes in distillation?

(a) Distilling and freezing

(b) Distilling and condensation reflux

(c) Freezing and condensation reflux

(d) Only condensation reflux

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This key question is from Distillation Basics topic in portion Distillation of Food Processing Unit Operations

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Right option is (b) Distilling and condensation reflux

The explanation is: Distillation is the process where it consists of two processes of distilling and condensation reflux. It is usually carried out in distillation column, the gas-liquid two-phase flow through the countercurrent contact.

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