Related Questions

  1. Which of the following element,has the same oxidation state in all of its com.
  2. Which of the following is endothermic reaction
  3. When conc. H₂SO₄ is added to dry KNO₃,brown fumes are evolved.These fumes are
  4. The heat of neutralization is the highest in the following case
  5. Oxidation numbers of P in PO₄³⁻, of S in SO₄²⁻ and that of Cr in Cr₂O₇²⁻