- (A) Liquid-liquid extraction
- (B) Solid-liquid extraction
- (C) Multi-component absorption with chemical reaction
- (D) Multi-component distillation
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) X/(X + 1)
- (B) X/(1 – X)
- (C) (1 + X)/X
- (D) (1 – X)/X
- (A) Water has a high latent heat of evaporation
- (B) Lewis number is close to unity
- (C) They are always equal under all circumstances
- (D) Solubility of the components of air in water is very small
- (A) Ri = Re/(1 – Re)
- (B) Ri = (1 – Re)/Re
- (C) Ri = Re
- (D) Ri = Re/(1 + Re)
- (A) Fractional crystallisation
- (B) Liquid extraction
- (C) Absorption
- (D) Evaporation
- (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
- (A) Temperature
- (B) Viscosity of solvent
- (C) Pressure
- (D) Size of the solid
- (A) Cold water leaving the tower and the wet bulb temperature of the surrounding air
- (B) Hot water entering the tower and the wet bulb temperature of the surrounding air
- (C) Hot water entering the tower and the cooled water leaving the tower
- (D) None of these
- (A) Murphree efficiency > point efficiency
- (B) Murphree efficiency < point efficiency
- (C) Murphree efficiency = point efficiency
- (D) Murphree efficiency ≠ point efficiency
- (A) Density
- (B) Molal concentration
- (C) Kinematic viscosity
- (D) Velocity head
