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Chemistry · PYQ NEET UG 2022

हिन्दी

Amongst the following which one will have maximum ‘lone pair – lone pair’ electron repulsions?

  1. \( \text{SF}_4 \)
  2. \( \text{XeF}_2 \)
  3. \( \text{ClF}_3 \)
  4. \( \text{IF}_5 \)

Correct answer · Option 2

\( \text{XeF}_2 \)

Explanation

\( \text{XeF}_2 \) has steric number 5 (linear shape, \( sp^3d \) hybridization) with 3 lone pairs on the central Xe atom arranged at equatorial positions, resulting in maximum lp-lp repulsions (three 90° and three 180° lone pair-lone pair interactions).
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