Question:
The decreasing order of basic strength in aqueous solution of amines is
The decreasing order of basic strength in aqueous solution of amines is
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The basic strength of amines decreases as the number of alkyl groups increases because the electron-donating effect of alkyl groups makes nitrogen less available for protonation.
Updated On: Apr 7, 2026
- Dimethylamine \(>\) Methylamine \(>\) Trimethylamine \(>\) Ammonia
- Methylamine \(>\) Dimethylamine \(>\) Trimethylamine \(>\) Ammonia
- Trimethylamine \(>\) Dimethylamine \(>\) Methylamine \(>\) Ammonia
- Ammonia \(>\) Trimethylamine \(>\) Dimethylamine \(>\) Methylamine
- Ammonia \(>\) Dimethylamine \(>\) Trimethylamine \(>\) Methylamine
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The Correct Option is A
Solution and Explanation
In aqueous solution, basicity depends on the availability of the lone pair on the nitrogen atom for protonation. Dimethylamine is the strongest base, followed by methylamine, trimethylamine, and ammonia.
Thus, the correct order of basicity is (A).
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