Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationPurification of Organic Compounds
MediumOn heating,some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as
- ASublimation
- BDistillation
- CChromatography
- DCrystallization
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Similar Questions
Which technique among the following is most appropriate for the separation of a mixture of $100 \ mg$ of $p-$nitrophenol and picric acid?
In an aniline and water mixture,aniline can be separated by:
Medium
View SolutionHow do you perform the purification of the following?
$(i)$ The boiling point of liquid $X$ is $450 \ K$ and it decomposes at $400 \ K$ temperature.
$(ii)$ Mixture of $60 \% \ \text{Camphor}$ and $40 \% \ BaSO_4$.
$(i)$ The boiling point of liquid $X$ is $450 \ K$ and it decomposes at $400 \ K$ temperature.
$(ii)$ Mixture of $60 \% \ \text{Camphor}$ and $40 \% \ BaSO_4$.
Easy
View SolutionConsider the following table$-$
Column-$I$ Column-$II$ $(A).$ Best and latest technique for isolation,purification and separation of organic compounds $(i).$ Chromatography $(B).$ In Lassaigne's test for $N$ $(ii).$ Vacuum distillation (distillation under reduced pressure) $(C).$ In Lassaigne's test for $S$ $(iii).$ Violet coloured complex is formed $(D).$ Aniline is purified from water by $(iv).$ Prussian blue coloured complex is formed $(E).$ Glycerol is purified from spent lye $(v).$ Steam distillation
The correct match is $-$
| Column-$I$ | Column-$II$ |
|---|---|
| $(A).$ Best and latest technique for isolation,purification and separation of organic compounds | $(i).$ Chromatography |
| $(B).$ In Lassaigne's test for $N$ | $(ii).$ Vacuum distillation (distillation under reduced pressure) |
| $(C).$ In Lassaigne's test for $S$ | $(iii).$ Violet coloured complex is formed |
| $(D).$ Aniline is purified from water by | $(iv).$ Prussian blue coloured complex is formed |
| $(E).$ Glycerol is purified from spent lye | $(v).$ Steam distillation |
The correct match is $-$
Medium
View SolutionGive a brief description of the principles of the following techniques taking an example in each case. $(a)$ Crystallisation $(b)$ Distillation $(c)$ Chromatography
Difficult
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