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Question

The shape of XeO2F2 is:

A
trigonal planar
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B
see-saw
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C
square planar
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D
tetrahedral
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Solution

The correct option is B see-saw
The molecules assume different geometries based on the number of bond pairs/lone pairs in the valence shell of the central atom. The pi electrons are not involved in deciding the geometry of the molecule.

Xe has 1 lone pair and four bond pairs. So, the steric number of Xe is 5 and the hybridisation is sp3d. Hence, the geometry of XeO2F2 is trigonal bipyramidal and the shape is see-saw.


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