Related Questions

Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when
A Extracting solvent is cheaply & abundantly available
B One of the liquid components is heat sensitive
C Viscosity of liquid components is very high
D One of the liquid components has very high affinity towards the solvent
Selectivity of the solvent used in solvent extraction should be
A 1
B > 1
C 0
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
A Increases
B Decreases
C Remains unaffected
D Increases Linearly
Extraction of pencillin employs a __________ extraction coloumn.
A Centrifugal
B Packed
C Plate
D None of these
The solvent used in liquid-liquid extraction should have __________ less than one.
A Selectivity
B Distribution co-efficient
C Both A & B
D Neither A nor B
Which of the following equipments is not used in liquid-liquid extraction?
A Pachuka tank
B Agitated vessels
C Centrifugal extractors
D Packed towers
In liquid-liquid extraction, the number of phases at plait point is
A 1
B 2
C 3
D 4
Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes?
A Packed towers
B Plate towers
C Spray towers
D Wetted wall columns
A coalescer in a mixer-settler liquid-liquid extraction coloumn
A Comprises of thin bed of substances of extended surface having high porosity
B Helps in increasing the bubble size entering the settler
C Helps in increasing the settling rate of the bubbles
D All of the above
If a high degree of selectivity is desired, then double-tuned circuit should have ___________ coupling
A Loose
B Tight
C Critical
D None of the above

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