Pick out the correct statement.

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Question

Pick out the correct statement.

Options:

A . Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of non-ideal binary system by distillation.

B . A sharp decrease in pressure drop is an indication of flooding in a distillation coloumn.

C . Solvent used in extractive distillation should be of high volatility.

D . Flash distillation is suitable for separating components which have very close boiling temperature.

Answer: Option A
Answer: (a).Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of non-ideal binary system by distillation.

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