Question

Molecule which contains $4$ bonded pairs and $2$ lone pairs of electrons on the central atom is:

• A. $Xe{F}_2$
• B. $C{O}_2$
• C. $Xe{F}_4$
• D. $S{F}_6$

Answer 1

Answer: (C)

$Xe{F}_4$

$Xe$ is a noble gas. It has $8$ electrons in its valence shell. Now, it is bonded to $4F$ atoms.

So, $4$ of its electrons are involved in bonding.

Hence, bond pairs = $4$. Remaining $4$ are unbonded electrons. So, lone pairs = $4/2=2$.