Question

$CF_{4}SF_{4}$and $XeF_{4}$contain the following electronic structure on their central atoms. Which one is correct option?

• A. 1, 2 and 3 lone pairs of electrons respectively
• B. 0, 1 and 2 lone pairs of electrons respectively
• C. 1, 1 and 1 lone pairs of electrons respectively
• D. No lone pairs of electrons on any molecule

Answer 1

Answer: (B)

0, 1 and 2 lone pairs of electrons respectively

Answer 2

: $CF_{4} - sp^{3}$tetrahedral but no unpaired electron.

$SF_{4} - sp^{3}d,$ trigonal bipyramidal with one unpaired electron.

$XeF_{4} - sp^{3}d^{2},$ square planar, two lone pairs of electrons.