Repeated extraction using small portions of solvents is more
Correct answer: B. Efficient
- A. Reliable
- B. Efficient
- C. Rapid
- D. slow
Explanation
Repeated extraction using small portions of solvents being more Efficient (Option B):
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About Experimental Techniques in Chemistry
Separation methods are selected according to differences in solubility, particle size, volatility and sublimation behaviour. Filtration and crystallisation separate insoluble or dissolved solids, sublimation isolates suitable volatile solids, distillation separates liquids by boiling point, and solvent extraction transfers a substance between immiscible solvents.
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