A. Pressure
B. Humidity
C. Temperature
D. Both B. and C.
Related Mcqs:
- The boiling points of pure components of a binary system ________________ with increase in total pressure of the system ?
A. Decreases
B. Increases
C. Remains unchanged
D. May increase or decrease, depends on the system - When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is _______________ distillation?
A. Continuous
B. Steam
C. Azeotropic
D. None of these - At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes_____________________?
A. 1
B. 0
C. ∞
D. None of these - At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes______________________?
A. 1
B. 0
C. ∞
D. None of these - Steam distillation is used for separation of high boiling ____________________?
A. Substances from non-volatile impurities
B. Volatile impurity from still higher boiling substances
C. Both A. and B.
D. Neither A. nor B. - Components, having widely different boiling point in a binary mixture, can be separated using ________________ distillation?
A. Molecular
B. Extractive
C. Steam
D. Simple - Pick out the system with minimum boiling azeotrope at 1 atm ?
A. Benzene-toluene
B. Ethyl alcohol-water
C. Hydrochloric acid-water
D. All A., B. and C. - Which of the following binary systems is an example of a maximum boiling azeotrope ?
A. Water-hydrochloric acid
B. Acetone-carbon disulphide
C. Water-ethyl alcohol
D. n-heptane-n-octane - Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure. Nitrobenzene will distil off _______________ °C?
A. At < 100
B. At > 210.6
C. Between 100 and 210
D. None of these - A minimum boiling azeotrope is exemplified by__________________________?
A. Toluene-benzene
B. Acetone-carbon disulphide
C. Water-isobutyl alcohol
D. None of these
