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Q.
The pair of species having identical shapes for molecules of both species is
NTA AbhyasNTA Abhyas 2022
Solution:
In $\text{C}\text{O}_{2}$ , C-atom is $\text{s}\text{p}$ -hybridised, thus it has linear structure. In $\text{X}\text{e}\text{F}_{2}$ , Xe is $\text{s}\text{p}^{3}\text{d}$ hybridised with three lone-pairs of electrons on equatorial positions. This minimises repulsion, hence it has also linear structure.