JEE Main 2025 — Chemical Bonding And Molecular Structure Question with Solution

1. Molecules with non-zero dipole moment

• SO₂ (bent)

• NF₃ (pyramidal)

• NH₃ (pyramidal)

• ClF₃ (T-shaped)

• SF₄ (seesaw)

  (XeF₂ is linear → zero dipole)

1. Lone-pair count on central atom

• SO₂: 1

• NF₃: 1

• NH₃: 1

• SF₄: 1

• ClF₃: 2

  → ClF₃ has the highest number (2) of lone pairs among those with nonzero dipole.

1. Hybridization of Cl in ClF₃

   • Total electron domains = 3 bonding pairs + 2 lone pairs = 5

   • For 5 domains → $s{p}^{3}d$ hybridization

Answer: Option D ($s{p}^{3}d$).