Answer: ClF 3.
- A ClF<sub>3</sub>
- B Cl<sub>2</sub>
- C NaCl
- D HCl
Correct answer: A. ClF<sub>3</sub>
Explanation: Interhalogens are compounds of two different halogen elements, e.g., ClF, ClF<sub>3</sub>, BrF<sub>5</sub>, IF<sub>7</sub>.
Xenon tetrafluoride (XeF4) has six electron domains around xenon — four Xe–F bonds plus two lone pairs. The lone pairs occupy opposite axial positions, leaving the four fluorine atoms in a square-planar shape (Xe–F ≈ 194 pm). Image: ChemSim, Public Domain, via Wikimedia Commons.
Concept context
Covers the nitrogen family (Group 15), oxygen family (Group 16), halogens (Group 17), and noble gases (Group 18). One of the highest-weightage inorganic chapters in NEET and JEE - includes preparation and properties of HNO₃, H₂SO₄, interhalogens, and xenon compounds.