The C to N to E angle in an amine is less than:
A125.5 degrees
B109.5 degrees
C170.5 degrees
D140.5 degrees
Answer & Solution
Correct answer: B. 109.5 degrees
1. A perfect sp3 centre would give 109.5 degrees.
2. The lone pair squeezes the bonds together.
3. So the observed angle falls below that value.
_Source: NCERT Class 12 Chemistry Part 2, Unit 9 'Amines'_
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