A. Benzene-toluene
B. Ethyl alcohol-water
C. Hydrochloric acid-water
D. All A., B. and C.
Related Mcqs:
- A minimum boiling azeotrope is exemplified by__________________________?
A. Toluene-benzene
B. Acetone-carbon disulphide
C. Water-isobutyl alcohol
D. None of these - 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 - If a1 and a2 are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement ?
A. a1 = a2
B. a1 = 2a2
C. a1 = 0.5 a2
D. None of these - At what percentage (by volume) of alcohol composition, it forms an azeotrope with water ?
A. 90
B. 91.5
C. 95
D. 99 - Which of the following mixtures does not form an azeotrope at atmospheric pressure ?
A. Water-alcohol
B. Methyl alcohol-acetone
C. Butyl acetate-water
D. None of these - At 750°K and 1 atm, the approximate value of Schmidt number for air is_________________?
A. 0.01
B. 0.1
C. 1
D. 10 - 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 - Components, having widely different boiling point in a binary mixture, can be separated using ________________ distillation?
A. Molecular
B. Extractive
C. Steam
D. Simple
