Related Questions

  1. Boron has two stable isotopes, ¹°B(19%) and ¹¹B(81%). Average atomic weight
  2. Phenol reacts with bromine in chloroform at low temperature to gives
  3. The correct order of ionisation energy for comparing carbon, nitrogen and oxygen
  4. Nitrogen is obtained by the thermal decomposition of
  5. The maximum valency of an element with atomic number 7 is