Related Questions

  1. Permanent hardness of water is due to the presence of
  2. The class of drugs used for the treatment of stress is
  3. Which of the following has the minimum bond length ?
  4. Na⁺, Mg²⁺, Al³⁺ and Si⁴⁺ are isoelectronic. The order of their ionic size is
  5. In Cu-ammonia complex, the state of hybridization of Cu²⁺ is