MHT CET 2026 Chemistry question

Which from following statements is NOT correct regarding Hofmann's exhaustive alkylation?

(A)In this quaternary ammmonium salts are obtained.
(B)Two moles of alkylhalide when heated with one mole primary amine forms tetraalkyl ammonium halide.Correct
(C)Depending on the quantity of alkyl halides treated with primary amine, the mixture of secondary and tertiary amines obtained.
(D)The reaction is carried out in presence of

Answer: (B)

Solution

In Hofmann's exhaustive alkylation an amine is treated with excess alkyl halide (in the presence of a base such as to neutralise the HX formed), so the nitrogen is alkylated step by step until the quaternary ammonium salt is formed: RNH_2R_2NHR_3N$ →

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Question ID VK-100430