- (A) Selectivity
- (B) Relative volatility
- (C) Solubility
- (D) Density difference
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- (A) Spray
- (B) Packed
- (C) Bubble cap plate
- (D) Wetted wall
- (A) At ground level
- (B) 2 metres above the ground
- (C) 5 metres above ground
- (D) 10 metres above ground
- (A) Thermal decomposition of bottoms
- (B) Increased relative volatility
- (C) Erosion of the tower
- (D) Very efficient operation
- (A) Large surface per unit volume
- (B) Large free cross-section
- (C) Low weight per unit volume
- (D) Large weight of liquid retained
- (A) Lewis relationship
- (B) Galileo number
- (C) Weber number
- (D) Dean number
- (A) Caustic solution
- (B) Dilute ammoniacal liquor
- (C) Dilute HCl
- (D) Ethanolamine
- (A) No change in theoretical
- (B) Marginal decrease in the number of
- (C) Major decrease in the number of
- (D) None of these
- (A) Sc × Pr
- (B) Pr × St
- (C) Sh × Pr
- (D) St × Sh
- (A) Size
- (B) Durability
- (C) Porosity
- (D) Cost
