In which of the following unit operations, the selectivity is an important parameter ?
Correct answer: B. Solvent extraction
- A. Distillation
- B. Solvent extraction
- C. Absorption
- D. None of these
Explanation
In solvent extraction, selectivity measures how preferentially the solvent removes one solute over another, directly determining the quality of separation. Distillation and absorption are more commonly described by relative volatility or absorption equilibrium and capacity.
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