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The hybridisation of nitrogen in ammonia (NH₃) is:
Asp
Bsp²
Csp³
Dsp³d
Answer & Solution
Correct answer: C. sp³
1. N in NH₃ has 3 bond pairs and 1 lone pair = 4 electron regions.
2. Four hybrid orbitals required ⇒ sp³ hybridisation.
3. Geometry: trigonal pyramidal (3 H + 1 lone pair); bond angle ~107° (lone-pair compression).
_Source: NCERT Class 11 Chem Ch 4 §4.6 Hybridisation in NH₃_
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