4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question
Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The bond angle in ammonia molecule is
A
${91^o}8'$
B
${93^o}3'$
✓
${106^o}45'$
D
${109^o}28'$
✓
Answer
Correct option: C.
${106^o}45'$
(c) In $N{H_3},s{p^3}$-hybridization is present but bond angle is ${106^o}45'$ because Nitrogen has lone pair of electron according to $VSEPR$ theory due to $bp-lp$ repulsion bond angle decreases from ${109^o}45'$ to ${106^o}45'$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.