Answer: NaClO 3 (sodium chlorate) and NaCl.
- A NaClO<sub>3</sub> (sodium chlorate) and NaCl
- B NaOCl and NaCl (cold dilute NaOH gives hypochlorite)
- C NaCl only
- D NaClO<sub>4</sub>
Correct answer: A. NaClO<sub>3</sub> (sodium chlorate) and NaCl
Explanation: Cold dilute NaOH + Cl<sub>2</sub> → NaOCl + NaCl (bleach); hot concentrated NaOH + 3Cl<sub>2</sub> → NaClO<sub>3</sub> + 5NaCl + 3H<sub>2</sub>O (disproportionation).
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.