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NEET 2026, Chemistry Q45: Purification Methods

NEET2026Chemistry
Q.

Two products X and Y are formed in the following reaction sequence

The suitable method that can be used for the separation of products X and Y is :

  1. A

    Continuous extraction

  2. B

    Differential extraction

  3. C

    Sublimation

  4. D

    Fractional distillation

Solution

Benzene undergoes Friedel-Crafts alkylation with CHCl/AlCl to give toluene (W). Nitration of toluene yields a mixture of ortho- and para-nitrotoluene (X and Y), which are isomeric liquids with different boiling points. The standard separation method for such an isomeric mixture is fractional distillation.

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