A. Liquid extraction
B. Distillation
C. Evaporation
D. Absorption
Related Mcqs:
- The solvent used in liquid extraction should not have high latent heat of vaporisation, because ______________________?
A. The pressure drop and hence the pumping cost will be very high
B. It cannot be recovered by distillation
C. Its recovery cost by distillation may be prohibitively high
D. It will decompose while recovering by distillation - High pressure at the bottom of a distillation tower handling heat sensitive materials results in____________________?
A. Thermal decomposition of bottoms
B. Increased relative volatility
C. Erosion of the tower
D. Very efficient operation - High pressure at the bottom of a distillation tower handling heat sensitive materials results in _____________________?
A. Thermal decomposition of bottoms
B. Increased relative volatility
C. Erosion of the tower
D. Very efficient operation - Acetic acid will be most economically separated from a dilute solution of acetic acid in water by____________________?
A. Solvent extraction
B. Continuous distillation
C. Evaporation
D. Absorption - 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 - Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of _______________ humidity?
A. Molal
B. Relative
C. Percentage
D. None of these - Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of _______________ humidity?
A. Molal
B. Relative
C. Percentage
D. None of these - During constant rate drying period, vaporisation rate per unit drying surface area _____________________?
A. Decreases with time
B. Increases with time
C. Does not change with time
D. Does not affect the moisture content of the wet solid - Which of the following assumes constant molal vaporisation and overflow ?
A. McCabe-Thiele method
B. Ponchan-Savarit method
C. Enthalpy concentration method
D. Plate absorption column - A binary mixture of benzene and cyclohexane is separated by___________________?
A. Flash vaporisation
B. Extractive distillation
C. Solvent extraction
D. Ordinary distillation
