Chemical Bonding And Molecular Structure Question 469
Question: The correct increasing bond angles order is
Options:
A) $ BF_3<NF_3<PF_3<ClF_3 $
B) $ ClF_3<PF_3<NF_3<BF_3 $
C) $ BF_3=NF_3<PF_3<ClF_3 $
D) $ BF_3<NF_3<PF_3<ClF_3 $
Show Answer
Answer:
Correct Answer: B
Solution:
- $ BF_3 $ : planar $ (sp^{2}), $
$ 120{}^\circ $ bond angle (maximum),Higher the electro negativity of central atom (in $ sp^{3} $ hybridized) larger the bond angle but presence of lone pair of electrons decreases the bond angle. Greater the no. of lone pair of electrons, lower the bond angle.
