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Assertion (A) . Components of a mixture ...

Assertion (A) . Components of a mixture of red and blue inks can be separated by distributing the components between stationary and mobile phases in paper chromatography
Reason (R). The coloured components of inks migrate at different rates because paper selectively retains different components according to the difference in their partition between the two phases.

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct but R is not the correct explanation of As

C

both A and R are not correct

D

A is not correct but R is correct

Text Solution

Verified by Experts

The correct Answer is:
A
Both A and R are correct and R is the correct explanation of A.
In paper chromatography, a chromatography paper is used. It contains water in it, which acts as the stationary phase. A strip of chromatography paper spotted at the base with ink is suspended in a suitable solvent. Solvent acts as the mobile phase.
The solvent rises up the paper by capillary action and flows over the spot. The paper selectively retains different components according to their differing partition in two phases.
Hence, components of ink will megrate at different rates and are separated.
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