Answered

Which two physical properties allow a mixture to be separated by chromatography?

(1) hardness and boiling point

(2) density and specific heat capacity

(3) malleability and thermal conductivity

(4) solubility and molecular polarity

Verified Answer :

 solubility and molecular polarity 

Answer:

The correct option is: (4) solubility and molecular polarity

Explanation:

Chromatography is an analytical technique which is used for the separation of various components in a given mixture.

In this process, the mixture to be separated is first dissolved in the mobile phase, which carries it through the stationary phase, thus leading to separation of the various components.

This differential separation is the result of the differential migration which is based upon the solubility and polarity of the individual components of of the given mixture.

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