(B) In the soap industry,glycerol is obtained as a byproduct in the form of spent-lye. Since glycerol has a high boiling point $(290 \ ^\circ C)$ and

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Distillation under reduced pressure

(B) In the soap industry,glycerol is obtained as a byproduct in the form of spent-lye. Since glycerol has a high boiling point $(290 \ ^\circ C)$ and tends to decompose at its boiling point,it is separated from the spent-lye by distillation under reduced pressure (vacuum distillation).

Class 11 Chemistry 8-3.Organic Chemistry : Purification and characterization Purification of Organic Compounds

Easy

How is glycerol separated from spent-lye in the soap industry?

A
Fractional distillation
B
Distillation under reduced pressure
C
Steam distillation
D
Sublimation

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Class 11

Chemistry Questions

Chapter

8-3.Organic Chemistry : Purification and characterization

Subtopic

Purification of Organic Compounds

The latest technique for the purification of organic compounds is

Easy

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$A$ liquid compound $(x)$ can be purified by steam distillation only if it is

MediumNEET 2020

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Match Column-$I$ and Column-$II$ with correct relation:

Column-$I$ Column-$II$

$(i)$ Differential extraction $(p)$ High difference of boiling point

$(ii)$ Steam distillation $(q)$ Separatory funnel

$(iii)$ Distillation at low pressure $(r)$ Component of petroleum

$(iv)$ Simple distillation $(s)$ Liquid decompose at high temperature

$(v)$ Fractional distillation $(t)$ Vacuum pump

Column-$I$	Column-$II$
$(i)$ Differential extraction	$(p)$ High difference of boiling point
$(ii)$ Steam distillation	$(q)$ Separatory funnel
$(iii)$ Distillation at low pressure	$(r)$ Component of petroleum
$(iv)$ Simple distillation	$(s)$ Liquid decompose at high temperature
$(v)$ Fractional distillation	$(t)$ Vacuum pump