- (A) Composition of vapors and that of liquid do not vary throughout the column
- (B) Reboiler load and condenser load are minimum
- (C) The top and bottom compositions are unchanged with and without total reflux
- (D) The top and bottom compositions correspond to the maximum enrichment available
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- (A) High maintenance cost
- (B) Non-uniform & low production rate
- (C) High labour cost & low heat economy
- (D) All ‘a’, ‘b’ & ‘c’
- (A) Solid dispersed in liquid
- (B) Solid dispersed in gas
- (C) Liquid dispersed in gas
- (D) Gas dispersed in liquid
- (A) Free flowing
- (B) Dry
- (C) Sticky
- (D) Granular
- (A) 0.01
- (B) 0.1
- (C) 10-5 to 10-6
- (D) > 1
- (A) Transfer of molecules from low concentration to high concentration region
- (B) Thermal energy of the molecules
- (C) Activation energy of the molecules
- (D) Potential energy of the molecules
- (A) Newtonian liquids
- (B) Non-Newtonian liquids
- (C) Ideal gases
- (D) Real gases
- (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
- (A) Evaporation
- (B) Drift
- (C) Blowdown and leakage
- (D) All
- (A) Operating line always lies above the equilibrium curve
- (B) Operating line always lies below the equilibrium curve
- (C) Temperature remains unaffected
- (D) Temperature always increases

