Related Questions

  1. One litre hard water contains 12 mg Mg²⁺. Milli equivalents of washing soda
  2. If the pH of a solution is 4, then its OH⁻ concentration is
  3. The energy of an electron in the 3rd orbit of hydrogen atom is -E
  4. Which of the following acids exhibits optical activity
  5. Acetone and acetaldehyde are