Chromatography Class test

Russian Botanist who developed the technique is referred to as the father of chromatography

• Tswet

• Goldberg

• Waage

• Frederic Reuss

Column chromatography is a type of

• Adsorption chromatography

• Paper chromatography

• Partition chromatography

• TLC

In Paper chromatography the solvent rises to the top chiefly by

• Capillary force

• Adsorption

• Hydrogen bonding

• Passive transport

The Rf value can never be

• More than 1

• Less than 1

• A fraction

• Positive

The common solvent for Paper chromatography Butanol: Acetic acid: Water (BAW) , is used in the ratio

• 4:1:5

• 4:5:1

• 6:6:3

• 6:3:6

Which among the following is the least or weakest polar solvent used in chromatography

• Hexane

• Acetone

• Water

• Acetic acid

Which of the following is NOT used as a stationary phase in TLC

• Agarose

• Silica

• Aluminium oxide

• Cellulose

A solvent can also be described as

• Elutant

• Eluent

• Column material

• Filler

“The higher the number of hydrocarbons in a solvent, the more polar it will be”

• False

• True

Calcium sulphate is added to stationary phase while preparing the TLC plate is for

• Inert binder

• Enhancing non polar nature

• Decreasing non polar nature

• Enhancing water absorption