P Block Elements Question 32
$ BCl_3 $ does not exist as dimer but $ BH_3 $ exists as dimer ( $ B_2H_6 $ ) because
Options:
A) Chlorine is more electronegative than hydrogen
B) There is $ p\pi $ - $ p\pi $ back bonding in $ BCl_3 $ but $ BH_3 $ does not contain such multiple bonding
C) Large sized chlorine atoms do not fit between the small boron atoms whereas small sized hydrogen atoms fit between the boron atoms
D) None of the above
Show Answer
Answer:
Correct Answer: C
Solution:
Small size of hydrogen atom
BETA
