MCQ
The bond angle $H-X-H$ is the greatest in the compound
- A$PH_3$
- ✓$CH_4$
- C$NH_3$
- D$H_2O$
✓
Answer
Correct option: B.
$CH_4$
b
More the number of lone pairs on central atom, the greater is the contraction caused in the angle between bond pairs. In $PH_3$ the bond pairs of electrons are so much farther away from the central atom due to larger size. Thus the lone pair cause greater distortion in $PH_3$ . Hence the bond angle decreases to $98^o$ .
More the number of lone pairs on central atom, the greater is the contraction caused in the angle between bond pairs. In $PH_3$ the bond pairs of electrons are so much farther away from the central atom due to larger size. Thus the lone pair cause greater distortion in $PH_3$ . Hence the bond angle decreases to $98^o$ .
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