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JEE Main202125 Feb 2021Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Which among the following species has unequal bond lengths?

Options

  1. ASiF 4
  2. BSF 4
  3. CXeF 4
  4. DBF 4

Correct answer

B. SF 4

Step-by-step solution

Species Hybridisation Bond length BF 4 ⊝ sp 3 (Tetrahedral) All bond lengths equal XeF 4 sp 3 d 2 (sq. planar) All bond lengths equal SF 4 sp 3 d (see - saw) axial bond length > equitorial bond length SiF 4 sp 3 (Tetrahedral) all bond lengths equal

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