Assertion (A) : Ammonolysis of alkyl halides is not a suitable method for the preparation of pure primary amines. Reason (R) : Ammonolysis of alkyl halides yields mainly tertiary amines.

Preparation of Amines by Ammonolysis of Alkyl Halides

Give reasons: (i) Aniline on nitration gives good amount of m-nitroaniline, though – NH₂ group is o/p directing in electrophilic substitution reactions. (ii) (CH₃)₂ NH is more basic than (CH₃)₃N in an aqueous solution. (iii) Ammonolysis of alkyl halides is not a good method to prepare pure primary amines.

TextPreparation of Amines by Ammonolysis of Alkyl HalidesGabriel Phthalimide Synthesis of Primary AminesBoiling Points of AminesComparison of Basicity of Primary, Secondary and Tertiary AminesCarbylamine Reaction for Primary AminesElectrophilic Substitution in Aromatic AminesChemical Reactions of Diazonium Salts

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