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Compound P is neutral, Q gives effervescence with NaHCO 3 while R reacts with Hinsberg’s reagent to give solid soluble in NaOH . Compound P is

Correct answer

3

Step-by-step solution

Q is giving effervescence with sodium bicarbonate, it means Q contain carboxylic acid functional group. The compound R is reacting with Hinsberg's reagent and giving solid which soluble in sodium hydroxide means R contain primary amine functional group. Hence, The compound P   can be a secondary amide. The overall reaction is shown below.

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