JEE Main Chemistry question

Decreasing order of basic nature in aqueous solution is [DCE 2007]

(A)C_6H_5NH_2 > NH_3 > CH_3NH_2 > (CH_3)_2NH
(B)NH_3 > C_6H_5NH_2 > CH_3NH_2 > (CH_3)_2NH
(C)(CH_3)_2NH > CH_3NH_2 > NH_3 > C_6H_5NH_2Correct
(D)CH_3NH_2 > (CH_3)_2NH > NH_3 > C_6H_5NH_2

Answer: (C)

Solution

In aqueous solution, aliphatic amines are more basic than ammonia (alkyl groups donate electron density), and ammonia is far more basic than aniline (whose lone pair is delocalised into the ring, making it the weakest base here). Among the aliphatic

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Question ID VK-150261