Aliphatic Compounds Containing Nitrogen - Result Question 22
####23. The correct order of basicities of the following compounds is
(a) $2>1>3>4$
(b) $1>3>2>4$
(c) $3>1>2>4$
(d) $1>2>3>4$
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Answer:
Correct Answer: 23. (b)
Solution:
- 4 , (acetamide) is least basic because lone pair of nitrogen is involved in delocalisation.
’ 1 ’ is most basic due to formation of resonance stabilised conjugate acid.
3 (secondary amine) is stronger base than 2 (primary amine).
Hence, overall order of basic strength is :
$1>3>2>4$
