4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question
Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The presence of lone pair in $NH_3$ can change it's :-
A
Shape
B
Angle as per hybridisation
✓
$(A)$ and $(B)$ both
D
None of these
✓
Answer
Correct option: C.
$(A)$ and $(B)$ both
c The presence of lone pair in ammonia can change its shape and angle as per hybridization. The repulsion between lone pair and bond pair is greater than the repulsion between bond pair and bond pair. Hence, the $H - N - H$ bond angle decreases. This alters the shape.
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