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Pick out the wrong statement. | |
A. | With decrease in feed temperature, the number of plates required for binary distillation decreases for a given L/V ratio. [Wrong Answer] |
B. | The extraction per unit of total height for a short packed column is more effective than for a tall column, in case of liquid-liquid extraction. [Wrong Answer] |
C. | Natural draft cooling towers are made of ferro-concrete and its cross-section is wider at the bottom. [Wrong Answer] |
D. | Vanderwall adsorption is also called chemisorption. [Correct Answer] |