Question

$\huge\green{Question}$⇒Why is diborane classified as electron deficient compound?

Answer 1

Answer:

Traditionally, diborane has often been described as electron-deficient, because the 12 valence electrons can only form 6 conventional 2-centre 2-electron bonds which are insufficient to join all 8 atoms.

Explanation:

Answer 2

${\boxed{\underline{\underline{\rm{\red{ANSWER}}}}}}$

• Diborane is said to be electron deficient because boron require 5 electrons to complete its octet. But in this molecule, each boron atom is bonded to 2 terminal hydrogen atoms each. Thus, it is an electron deficient molecule.