A) \[SiC{{l}_{4}},PCl_{4}^{+}\]
B) Diamond, carbide
C) \[N{{H}_{3}},P{{H}_{3}}\]
D) \[Xe{{F}_{4}},Xe{{O}_{4}}\]
Correct Answer: D
Solution :
(i) Structure of \[\text{SiC}{{\text{l}}_{\text{4}}}\] |
Structure of \[\text{PCl}_{\text{4}}^{\text{+}}\] |
(ii) Diamond and silicon carbide (SiC), both are isostructural because their central atom is \[s{{p}^{3}}\] |
hybridised and both have tetrahedral arrangement. |
(iii) Structure of \[N{{H}_{3}}\] |
Structure of \[P{{H}_{3}}\] |
Both \[N{{H}_{3}}\] and \[P{{H}_{3}}\] have \[s{{p}^{3}}\] geometry. |
(iv) \[Xe{{F}_{4}}\] has \[s{{p}^{3}}{{d}^{2}}\] hybridisation while \[Xe{{O}_{4}}\] has \[s{{p}^{3}}\] hybridisation. |
Structure of \[Xe{{F}_{4}}\] |
Structure of \[Xe{{O}_{4}}\] |
Hence, \[Xe{{F}_{4}}\] and \[Xe{{O}_{4}}\] are not isostructural. |
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