At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

At __________ reflux, theoretical number of plates in a distillation c

1.	At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.
A.	Operating
B.	Total
C.	Minimum
D.	Maximum permissible
Answer» C. Minimum

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At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

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