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CBSE Class 12 · 2005 · Delhi · Compounds Containing NitrogenShort Answer

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a) Assign a reason: alkylamines are stronger bases than arylamines.
b) How would you convert methylamine into ethylamine?

Solution

(a) The aryl ring delocalises the nitrogen lone pair (and the anilinium ion loses this resonance) — so ArNH < RNH in basicity.
(b) Add one carbon via the nitrile:

CBSE Class 12 Board · 2005 · Delhi · Subjective

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