MHT CET 2025 Chemistry question

What is the expected order of basic strength of different compounds from following

(A)RN < RNH < R NH < NH
(B)NH < R NH < RNH < RNCorrect
(C)RNH < RN < R NH < NH
(D)NH < RN < RNH < R NH

Answer: (B)

Solution

Basicity of an amine is the availability of the lone pair on nitrogen. Alkyl groups donate electrons (+I effect), increasing electron density on N, so each added alkyl group makes the amine more basic than NH. When only the inductive effect operates (gaseous phase, no solvation) the order is NH < RNH <

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Question ID VK-103115