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NTA Abhyas JEE Main2020ChemistryChemical Bonding and Molecular StructurePractice

Which of the following is most stable ?

Options

  1. AStructure(A)
  2. BStructure (B)
  3. CStructure(C)
  4. DStructure(D)

Correct answer

A. Structure(A)

Step-by-step solution

In (C) and (D) there is l p - b p repulsions. The size of methyl group is greater than F , hence (B) experience greater repulsion than (A). according to bent rule more electronegative atom occupy axial position because axial position has more p- character, so 2 F atoms placed at axial first then rest of F atom occupy equatorial position.

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