❖ Uses of metals
▪ Metals are use for making machinery and automobiles
▪ It is also use for making cooking utensils and water boilers.
▪ It is use to making trains, satellites, industrial gadgets.
Some metals uses are given below :
▪ Iron :
Iron is use for making pins,nails , nuts, bolts ,tools, machine, construction of buildings, bridges etc .
▪ Aluminium:
Aluminium is use for making utensils , wires and furniture.
It is use for making parts of aircraft, vehicles, machines.
It is use for packing food and medicines.
▪ Copper :
Copper Is used for making wires , vessels and electric gadgets .
▪ Gold:
Gold is use for making jewellery , coins medals .
▪ Silver :
It is used for making jewellery , coins, and medals .
▪ Platinum:
Platinum is used for making jewellery , electronic gadgets , plugs in vehicles etc
▪ Sodium :
It is used as a common salt , chemicals .
▪ Calcium :
It’s compound are used for making cement, glass etc
❖ Uses of non metals :
▪ Non metals use in water purification process.
▪ It is use in the purple coloured solution which is applied on wounds as an antiseptic.
▪ Non metals use in crackers
Some non metals uses are given below :
▪ Sulphur:
Sulphur is used for making sulphuric acid, salts of metals etc
▪ Oxygen :
It is use for respiration by living things, burning of fuels.
▪ Nitrogen :
Nitrogen is used for making ammonia which is used for making fertilizer.
▪ Hydrogen:
It is used making ammonia which is used for making fertilizer.
▪ Chlorine :
Is use to kill germs in water.
▪ Iodine :
Iodine is used as tincture iodine which is an antiseptic .
- Questions
1) ————— gas is used in manufacturing of ammonia
: Hydrogen gas.
2) ———— is mainly used for making electrodes for automobiles batteries.
: Lead.
3) Which metal is used for galvanising iron?
: Zinc metal is used for galvanising iron.
4) ———— is used for disinfecting drinking water.
: Chlorine.
5) ——— is used for making gunpowder
: Sulphur.