Which pair of molecules does not have identical structure?

Which pair of molecules does not have identical structure?
  1. $\mathrm{I}_3^{-}, \mathrm{BeF}_2$
  2. $\mathrm{O}_3, \mathrm{SO}_2$
  3. $\mathrm{BF}_3, \mathrm{ICl}_3$
  4. $\mathrm{BrF}_4^{-}, \mathrm{XeF}_4$

Solution

$\mathrm{BF}_3 \rightarrow$ Trigonal planar $\mathrm{ICl}_3 \rightarrow \mathrm{T}$-shape

Asked in: NEET 2022 (Phase 1)

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