Related Questions

  1. Which of the following is non-permissible?
  2. The reduction of benzoyl chloride with H₂/Pd BaSO₄ gives
  3. When excess ammonia is added to CuSO₄ solution the deep blue complex obtained is
  4. Helium is used in balloons in place of hydrogen because it is
  5. The oxidation number of As in H₂AsO₄⁻ is