A) equal pressure of barometer
B) less than pressure of barometer
C) equal to vapour pressure to toluene in simple distillation
D) more than vapour pressure of toluene in simple distillation
Correct Answer: B
Solution :
[b] In steam distillation of toluene, the pressure of toluene in vapour is less than pressure of barometer, because it is carried out when a solid or liquid is insoluble in water and is volatile with steam but the impurities are non-volatile.
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