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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3si109

Which statements about chromatography are correct?

APaper chromatography is mainly partition chromatography, with water held on cellulose acting as the stationary phase.
BColumn chromatography on alumina is based on differential adsorption.
CTLC on silica gel is a form of adsorption chromatography.
DIn adsorption chromatography the most strongly adsorbed component is eluted first.

Answer: A, B, C

Paper chromatography partitions solutes between bound water and the mobile solvent. Alumina and silica separate by adsorption. The most strongly adsorbed component moves slowest and is eluted last, so statement 4 is wrong.

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