Question

Which of these molecules have non-bonding electron pairs on the central atom?

• A. ${\mathrm{SF}}_4$
• B. ${\mathrm{SO}}_2$
• C. ${\mathrm{ICl}}_3$
• D. All Of These

Answer 1

The correct option is D

All Of These

Explanation for correct option:

D. All of these

Non-bonding electrons:

• A non-bonding electron is an electron not involved in chemical bonding.
• A lone pair can be considered a non-bonding electron pair as it does not participate in chemical bonding.

A. ${\mathrm{SF}}_4$

• ${\mathrm{SF}}_4$ has a trigonal bipyramidal shape with ${\mathrm{sp}}^3\mathrm{d}$and one lone pair of electrons.

B. ${\mathrm{SO}}_2$

• ${\mathrm{SO}}_2$ has a bent shape with ${\mathrm{sp}}^2$hybridization with one lone pair of electrons.

C. ${\mathrm{ICl}}_3$

• ${\mathrm{ICl}}_3$ has a trigonal bipyramidal shape with ${\mathrm{sp}}^3\mathrm{d}$and two lone pairs of electrons.

Hence, the correct option is D i.e. All of these as all the molecules have non-bonding electrons.