A. Evaporation
B. Drying
C. Crystallisation
D. Both B. and C.
Related Mcqs:
- The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called__________________?
A. Decoction
B. Percolation
C. Elutriation or elution
D. None of these - Removal of ______________ exemplifies an adsorption unit operation?
A. Uranium from its ore
B. Water from petrol
C. Ammonia from coke oven gas
D. Mustard oil from mustard seed - Adsorption is a unit operation which generally involves _______________ systems?
A. Liquid-solid
B. Gas-solid
C. Fluid-solid
D. Solid-solid - The commonly used solvent in supercritical extraction is_____________________?
A. Methyl ethyl ketone
B. Water
C. Carbon tetrachloride
D. Carbon dioxide - The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is_____________________?
A. 0
B. ∞
C. -ve
D. +ve - The most efficient cooling tower out of the following is_____________________?
A. Induced draft
B. Forced draft
C. Natural draft
D. Atmospheric - Degree of freedom for leaching and solvent extraction process is_____________________?
A. 0
B. 1
C. 2
D. 3 - The expression, ln(F/W) = ∫xF xW [dx/y* – x)] is_____________________?
A. Differential distillation equation
B. For NtoG in absorption for dilute mixture
C. Slope of q-line in McCabe-Thiele method
D. For relative volatility - When the feed to a distillation column is a saturated liquid, slope of the feed line is_____________________?
A. Zero
B. Unity
C. Infinity
D. None of these - In extractive distillation, solvent is_____________________?
A. Added to alter the relative volatility of the mixture
B. Of high volatility
C. Present in overhead stream
D. Of high viscosity to give high tray efficiency