Related Questions

  1. After tow hours, the ratioactive substance becomes 1/16th of original amount
  2. The case of adsorption of the hydrated alkali metal ions on an ion-exchange
  3. Chlorine acts as bleaching agent only in the presence of
  4. Last molecule of H₂O is evolved from H₂O₂ by
  5. Which one of the following moleculescontains no π bond?