(D) Thin-layer chromatography $(TLC)$ is a type of adsorption chromatography. In this technique,a thin layer of an adsorbent material (like silica gel

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(D) Thin-layer chromatography $(TLC)$ is a type of adsorption chromatography. In this technique,a thin layer of an adsorbent material (like silica gel or alumina) is spread over a glass or plastic plate. The mixture to be separated is applied to the plate,and the components are separated based on their differential adsorption on the stationary phase as the mobile phase moves up the plate.

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

Medium

Thin-layer chromatography is an example of

A
Partition chromatography
B
Column chromatography
C
Gas-chromatography
D
Adsorption chromatography

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

8-3.Organic Chemistry : Purification and characterization

Subtopic

Purification of Organic Compounds

Gasoline is obtained from crude petroleum oil by its

Medium

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From the figure of column chromatography given below,identify the incorrect statements.
$A.$ Compound '$c$' is more polar than '$a$' and '$b$'
$B.$ Compound '$a$' is least polar
$C.$ Compound '$b$' comes out of the column before '$c$' and after '$a$'
$D.$ Compound '$a$' spends more time in the column
Choose the correct answer from the options given below :-

DifficultJEE MAIN 2023

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Which of the following compounds can be separated by the steam distillation method?

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Explain differential extraction.

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Match items of Column-$I$ and Column-$II$.

Column-$I$ (Mixture of compounds) Column-$II$ (Separation Technique)

$A$. $H_2O / CH_2Cl_2$ $I$. Crystallization

$B$. $\alpha$-tetralone / $p$-nitrophenol $II$. Differential solvent extraction

$C$. Kerosene / Naphthalene $III$. Column chromatography

$D$. $C_6H_{12}O_6 / NaCl$ $IV$. Fractional Distillation

Correct match is:

Column-$I$ (Mixture of compounds)	Column-$II$ (Separation Technique)
$A$. $H_2O / CH_2Cl_2$	$I$. Crystallization
$B$. $\alpha$-tetralone / $p$-nitrophenol	$II$. Differential solvent extraction
$C$. Kerosene / Naphthalene	$III$. Column chromatography
$D$. $C_6H_{12}O_6 / NaCl$	$IV$. Fractional Distillation