1. Diamond (a form of carbon) is used for making jewels, cutting and grinding equipments. Graphite is used in making pencil lead.
2. Sulphur is used in the manufacturing of gun powder and vulcanization of rubber.
3. Phosphorus is used in matches, rat poison etc.
4. Nitrogen is used for manufacturing ammonia.
5. Chlorine is used as a bleaching agent and in sterilizing water.
6. Hydrogen is used as a rocket fuel and hydrogen flame is used for cutting and welding purposes, as well as a reducing agent.
