Single Choice

Glycerin can be purified by:

Avacuum distillation
Correct Answer
Bsimple distillation
Csteam distillation
Dfractional distillation

Solution

The liquids which decompose at its boiling point can be purified by vacuum distillation. Glycerol decomposes at its boiling point (563K). It can be distilled by vacuum distillation without decomposition at 453K and under 12mm Hg pressure.


SIMILAR QUESTIONS

Organic Chemistry

A flask contains a mixture of isohexane and 3-methylphentane. One of the liquids boils at $$63\ ^oC$$ while the other boils at $$60\ ^o \text{C}$$. What is the best way to separate the two liquids and which one will be distilled out first?

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The distillation technique most suited for separating glycerol from spent-lye in the soap industry is :

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Give a brief description of the principles of distillation.

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Distillation under reduced pressure is generally used to purify those liquid which:

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Glycerol decomposes at its boiling point $$(563\,K)$$. Discuss a method which can used for its purification.

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Give a brief description of the principles of the following process taking an example. Distillation under reduced pressure.

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Glycerol, which decomposes at its boiling point can be purified by :

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Distillation under reduced pressure is employed for :

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Fill in the blanks : Liquids which decompose at or below their boiling points are purified by .............

Organic Chemistry

Glycerol boils at $$ 290^o C $$ with slight decomposition. Impure glycerine can be purified by

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