In which of the following pairs, both the species are not isostructural?
A
NH3,PH3
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B
XeF4,XeO4
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C
SiCl4,PCl+4
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D
Diamond, silicon crabide
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Solution
The correct option is BXeF4,XeO4 (i) Hybridisation of NH3andPH3[σ=3,lp=1] is sp3 Geometry: Tetrahedral
(ii) Structures of XeF4 is square planar.
Structure of XeO4 is tetrahedral ∴XeF4 and XeO4 are not isostructural
(iii) Structure of SiCl4 is tetrahedral
Structure of PCl+4 is tetrahedral
(iv) Diamond & SiC both are isostructural because both have tetrahedral arrangement and the central atom is sp3 hybridised.