An Azeotropic mixture is a ________________ mixture?

Related Mcqs:

1. The relative volatility of a binary mixture at the Azeotropic composition is _______________________?

   A. 1
   B. > 1
   C. 0
   D. ∞

2. In Azeotropic mixture, the equilibrium vapour composition is____________________?

   A. More than liquid composition
   B. Less than liquid composition
   C. Same as liquid composition
   D. Independent of pressure

3. The relative saturation of a partially saturated mixture of vapour and gas can be increased by ________________ of the mixture?

   A. Reducing the total pressure
   B. Increasing the total pressure
   C. Reducing the temperature
   D. Both B. and C.

4. Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation ?

   A. Cost
   B. Availability
   C. Toxicity
   D. Selectivity

5. Entrainer used in Azeotropic distillation should____________________?

   A. Form a low boiling azeotrope with one of the constituents of the mixture
   B. Form a new azeotrope of low relative volatility with one of the constituents of the mixture
   C. Have high latent heat of vaporisation
   D. Have high viscosity to provide high tray efficiency

6. The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C ?

   A. 25
   B. > 25
   C. < 25
   D. – 25

7. The dew point of an unsaturated gas-vapor mixture does not depend upon the _________________ of the mixture?

   A. Composition
   B. Temperature
   C. Total pressure
   D. All A, B. and C.

8. The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C?

   A. 25
   B. > 25
   C. < 25
   D. – 25

9. The dew point of an unsaturated gas-vapor mixture does not depend upon the ____________________ of the mixture?

   A. Composition
   B. Temperature
   C. Total pressure
   D. All A., B. and C.

10. A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture ?

    A. The mixture exhibits an azeotrope at 101.3 kPa
    B. The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and mxylene
    10
    C. The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10
    D. The mixture contain optical isomers