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CBSE Class 12 · 2009 · Delhi · Compounds Containing NitrogenVery Short Answer

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Why is an alkylamine more basic than ammonia?

Answer: The +I alkyl group raises electron density on N and stabilises the alkylammonium ion.

Solution

The electron-releasing alkyl group makes the nitrogen lone pair more available and spreads the positive charge of RNH — both favour protonation, so RNH > NH in basicity.

CBSE Class 12 Board · 2009 · Delhi · Subjective

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