P-Block Elements Ques 585
Question: Which one of the following does not have a pyramidal shape?
Options:
A) $ {{(CH_3)}_3}N $
B) $ {{(SiH_3)}_3}N $
C) $ P{{( CH_3 )}_3} $
D) $ P{{( SiH_3 )}_3} $
Show Answer
Answer:
Correct Answer: B
Solution:
In case of $ N{{(Si{H_{^{3}}})}_3}, $ N atom is $ sp^{2} $ hybridised, the lone pair is present in 2p orbital and it is transferred to empty d orbital of Si forming $ d\pi -p\pi $ bond. Hence nitrogen with $ sp^{2} $ hybridization has trigonal planar shape.
