Question

State five uses of metals and five of non-metals.

Answer 1

Five uses of metals are:

1. Metals are ductile and can be drawn into wires. Example: copper and aluminium
2. House-hold utensils and factory equipment can be made using metals because they are malleable. Example:Iron, copper and aluminium.
3. Iron can be protected from rusting by galvanising it with zinc.
4. Mercury, a liquid metal, is used in thermometers.
5. Car batteries are made out of the metal, lead.

Five uses of non-metals are:

1. Hydrogen is used to manufacture ammonia.
2. Hydrogen is also used in rocket fuel.
3. Graphite is used to make electrodes of electrolytic cells and dry cells.
4. Nitrogen, due to its inertness, is used to preserve food.
5. Sulphur is used to vulcanise rubber.