A. Complete the table by writing the uses of metals and non-metals given in the table.
1. Carbon
2. Sulphur
3. Nitrogen
4. Copper
5. Iron
6. Gold
7. Aluminum
8. Lead
Answers
Answer:
1. Carbon - used in fire extinguisher
2. Sulphur - used in making of synthetic rubber
3. Nitrogen - used in drying of cargo tanks
4. Copper - making wires
5. Iron - used in making of locks and keys
6. Gold - making jewelry
7. Aluminum - making foil paper
8. Lead - tip of pencil from which we wright
Answer:
1.Carbon : Used as a fuel. Also it's allotropic form(Graphite) is used for pencil tips.
2.Sulphur : Used in many other industries including non-ferrous metals,pharmaceuticals, agricultural pesticides, personal care products, cosmetics.
3.Nitrogen : Used in creating ammonia, which in turn is used to make fertilizer, explosives and other materials.
4. Copper : Used in electrical equipment such as wiring and motors. Also used in construction and industrial machinery.
5.Iron : Used to manufacture steel and also used in civil engineering like reinforced concrete, girders etc.
6.Gold : Used as alloys are used for fillings, crowns, bridges, and orthodontic appliances.
7.Aluminium : Used in a huge variety of products including cans, foils, kitchen utensils, window frames, beer kegs and aeroplane parts.
8.Lead : Uses of lead are in ammunition, oxides in glass and ceramics, casting metals.
Explanation: