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NEET2015ChemistryChemical Bonding and Molecular StructureActual

In which of the following pairs, both the species are not isostructural?

Options

  1. AS i C l 4 , P C l 4 +
  2. BDiamond, silicon carbide
  3. CN H 3 , P H 3
  4. DX e F 4 , X e O 4

Correct answer

D. X e F 4 , X e O 4

Step-by-step solution

i. Hybridization of N H 3 σ = 3 , l p = 1 s p 3 geometry : Tetrahedral ii. Structures of X e F 4 is square planar. Structure of X e O 4 is tetrahedral So X e F 4 and X e O 4 are not isostructural. iii. Structure of S i C l 4 is tetrahedral. Structure of P C l 4 + is tetrahedral. iv. Diamond and SiC both are isostructural because both have tetrahedral arrangement and central atom is s p 3 hybridized.

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