JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
The distillation technique most suited for separating glycerol from spent-lye in the soap industry is:
- A Steam distillation.
- B Distillation under reduced pressure.
- C Simple distillation
- D Fractional distillation
Answer & Solution
Correct Answer
(B) Distillation under reduced pressure.
Step-by-step Solution
Detailed explanation
Spent-lye and glycerol are separated by distillation under reduced pressure. Under the reduced pressure the liquid boil at low temperature and the temperature of decomposition will not reach. e.g. glycerol boils at \(290^{\circ} \mathrm{C}\) with decomposition but at reduced…
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