Methods of Purification of Organic Compounds

Which of the following apparatus is not used during distillations at reduced pressure?

During distillation process, the apparatus used to heat the source liquid is called

In column chromatography, identify the mobile and stationary phase from the following.

Which of the following material is coated on the surface of glass, plastic or aluminium foil in thin-layer chromatography?

Thin layer chromatography is : 

Which of the following method is used to separate camphor from camphor sand mixture?

Which of the following cannot be used as adsorbent in column chromatography?

The principle behind purification by crystallisation is that the:

Which of the following method is used in chromatography.

A mixture of Dichloromethane and Aniline can be separated by $\_\_$

In thin layer chromatography, a substance moved by a distance of $4 \mathrm{cm},$ where as the solvent moved by a distance of $5 \mathrm{cm}$. Then the value of retardation factor$\left({\mathrm{R}}_{\mathrm{f}}\right)$ is

If the sample components are separated showing colourless which dried in

In TLC, the plate usually made up of

The separated liquid can be stored in the

Which is the apparatus used to separate liquids under reduced pressure?

The vertical cylindrical columns in distillation process are known as

The mixture of liquids can be separated by the difference in their

On a TLC plate it is found, that a compound moves $9 \mathrm{cm}$ and the solvent moves $12 \mathrm{cm}$. What is the retention factor for the compound?

Which of the following is an industrial application of fractional distillation?

The principle behind fractional distillation technique in separation of two liquids is: