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Question
Which of the following is purified by vacuum distillation?
Which of the following is purified by vacuum distillation?
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Solution
The correct option is C Propane−1,2,3−triol
Compounds which decompose at a temperature below their boiling point cannot be distilled at atmospheric pressure. On reducing the pressure, the liquid will boil at lower temperture.
Glycerine, glycerol and propane−1,2,3−triol are decomposed under the boiling point. So these are purified by vaccum distillation.
Compounds which decompose at a temperature below their boiling point cannot be distilled at atmospheric pressure. On reducing the pressure, the liquid will boil at lower temperture.
Glycerine, glycerol and propane−1,2,3−triol are decomposed under the boiling point. So these are purified by vaccum distillation.
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