Chemistry - CHEMICAL BONDING Question with Solution | TestHub

In Option A: In BrO₃⁻, the central Br atom has 3 $\sigma$-bonds and 1 lone pair, giving it a steric number of 4 and sp³ hybridization containing a lone pair.

In Option B: The central atoms in OCN⁻, N₃⁻, and CO₃²⁻ do not possess any lone pairs on their central atoms.

In Option C: In ICl₂⁺, the central I atom has 2 $\sigma$-bonds and 2 lone pairs, which results in an sp³ hybridization containing lone pairs.

In Option D: SbH₃ is unhybridized due to Drago's rule (lone pair is in a pure $s$-orbital), while XeF₄ and IF₅ have sp³d² hybridized central atoms.