Related Questions

  1. The number of valence electrons in 4.2g of N³⁻ ion is
  2. Atoms or ions missing from the normal lattice point creating a vacancy is due to
  3. The oxidation states of sulphur in the anions : SO₃²⁻,S₂O₄²⁻ and S₂O₆²⁻
  4. Schiff’s reagent is
  5. The set representing the correct order for the first ionisation potential is