1. (CH₃)₂NH > CH₃NH₂ > (CH₃)₃N 2. (CH₃)₃N > CH₃NH₂ > (CH₃)₂NH 3. (CH₃)₃N > (CH₃)₂NH > CH₃NH₂ 4. CH₃NH₂ > (CH₃)₂NH > (CH₃)₃N

Topic: Basic character of amines· Organic Compounds Containing Nitrogen

The correct order of the basic strength of methyl substituted amines in aqueous solution is :

1. \((CH_3)_2NH > CH_3NH_2 > (CH_3)_3N\)

2. \((CH_3)_3N > CH_3NH_2 > (CH_3)_2NH\)

3. \((CH_3)_3N > (CH_3)_2NH > CH_3NH_2\)

4. \(CH_3NH_2 > (CH_3)_2NH > (CH_3)_3N\)

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 1. \((CH_3)_2NH > CH_3NH_2 > (CH_3)_3N\)

In aqueous solution basicity depends on both the inductive effect (more alkyl groups push electrons) and solvation of the ammonium ion (more N-H bonds give more hydrogen bonding stabilisation).

For methylamines these effects balance as: secondary > primary > tertiary, that is \(\mathrm{(CH_3)_2NH > CH_3NH_2 > (CH_3)_3N}\). Option (1).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?

The correct order of the basic strength of methyl substituted amines in aqueous solution is :

1 answer

Your answer