A . Reboiler is not used in open steam distillation.
B . The separation of solutes of different molecular sizes in a liquid solution by use of a suitable membrane is called dialysis.
C . Freeze drying is used for the drying of fish.
D . Fenske-Underwood equation is used for calculating theoretical number of plates in a distillation column at normal operating reflux condition.
Answer: Option D Answer: (d).Fenske-Underwood equation is used for calculating theoretical number of plates in a distillation column at normal operating reflux condition.
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