Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationPurification of Organic Compounds
DifficultIn the given $TLC$ plate,the distances of spots $A$ and $B$ from the base line are $4 \ cm$ and $6 \ cm$,respectively. The distance moved by the solvent front from the base line is $8 \ cm$. If the $R_f$ value of $B$ is $x \times 10^{-1}$ times that of $A$,find the value of $x$.
- A$10$
- B$15$
- C$20$
- D$25$
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Similar Questions
Consider 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 SolutionThe most suitable method of separation of a $1:1$ mixture of $ortho$- and $para$-nitrophenols is:
MediumNEET 2017
View SolutionMethods used for purification of organic compounds are based on:
$A$ flask contains a mixture of isohexane and $3-$methylpentane. One of the liquids boils at $63^{\circ}C$ while the other boils at $60^{\circ}C$. What is the best way to separate the two liquids and which one will be distilled out first?
The distillation technique most suited for separating glycerol from spent-lye in the soap industry is:
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