Related Questions

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
For separating small pieces of metal from engine oil of a car, the best separating technique is the
A Chromatography
B Evaporation
C Filtration
D Fractional distillation
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.
A Chemical properties
B Physical properties
C Degree of turbulence
D Interfacial area
__________ extractor is used for the concentration of radioactive nuclear waste.
A Pulsed column
B Seive plate
C Mixer-settler
D Ballman
For multicomponent multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.
A Chemical potential
B Fugacity
C Both A and B
D Neither A nor B
Bollman extractor
A Is a static bed leaching equipment
B Is used for extraction of oil from oilseed
C Is a centrifugal extractor
D Employs only counter-current extraction
In a counter-current extractor, as the axial mixing increases, the extraction efficiency
A Increases
B Decreases
C Remains unchanged
D Depends on the pressure of the system
In a counter-current liquid extractor
A Both liquids flow at fixed rate
B Both liquids can have any desired flow rate
C Only one of the liquids may be pumped at any desired rate
D Liquid's flow rate depends upon the temperature and pressure
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.
A Less than
B Greater than
C Equal to
D None of these
Gizzlies are used for separating __________ solids.
A Coarse
B Fine
C Any size
D None of these

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