Chemical Bonding And Molecular Structure

From the given covalent compounds (A to F) identify the pair of molecules which have:

(i) Two lone pairs of electrons on the central atom.

(ii) One lone pair of electrons on the central atom.

A. $\mathrm{SO}_2$


B. $\mathrm{ClF}_3$


C. $\mathrm{BF}_3$


D. $\mathrm{BrF}_5$


E. XeF ₄


F. $\mathrm{SF}_6$