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Question: Answered & Verified by Expert
Assertion : \(\mathrm{SeCl}_4\) does not have a tetrahedral structure.
Reason : \(\mathrm{Se}\) in \(\mathrm{SeCl}_4\) has two lone pairs.
ChemistryChemical Bonding and Molecular StructureAIIMSAIIMS 2008
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
2751 Upvotes Verified Answer
The correct answer is: If assertion is true but reason is false.
$\mathrm{SeCl}_4$ possesses see-saw geometry, which can be regarded as a distorted trigonal bipyramidal structure, having one lone pair of electrons in the basal position of the trigonal bipyramid. See-saw geometry of $\mathrm{SeCl}_4$ molecules arises due to the $s p^3 d$ hybridisation of the central atom. The distortion in shape is due to the presence of one lone pair of electrons.

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