Question

Phenolic group can be identified by a positive

Options :

  1. Phthalein test

  2. Lucas test

  3. Carbylamine test

  4. Tollen’s test

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Report

Answer :

Phthalein test

Solution :

Phenol on heating with phthalic anhydride in the presence of concentrated sulphuric acid forms a colourless condensation compound called phenolphthalein.

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