Chemistry - CHEMICAL BONDING Question with Solution | TestHub

In (C) and (D) there is$\mathrm{l}\mathrm{p}-\mathrm{b}\mathrm{p}$repulsions. The size of methyl group is greater than$\mathrm{F}$, hence (B) experience greater repulsion than (A).

according to bent rule more electronegative atom occupy axial position because axial position has more p- character, so 2 F atoms placed at axial first then rest of F atom occupy equatorial position.