Question

3. Mention two uses of the following metals and
non-metals :
(a) Iron (b) Aluminium
(c) Gold (d) Oxygen
(e) Iodine ​

Answer 1

Answer:

Uses of iron

1. It is used to manufacture steel and also used in civil engineering like reinforced concrete, girders etc.
2. Iron is used to make alloy steels like carbon steels with additives such as nickel, chromium, vanadium, tungsten, and manganese.

Uses of aluminium:-

1. Aluminium is a silvery-white, lightweight metal.
2. It is soft and malleable.
3. Aluminium is used in a huge variety of products including cans, foils, kitchen utensils, window frames, beer kegs and aeroplane parts.
4. This is because of its particular properties.

Uses of Gold:-

1. Dentistry and Medicine: Gold is considered as the best filling for cavities and crowns, bridges and other orthodontic appliances because the metal is ductile and can easily take shapes. ...
2. Electronics and Computers.

Uses of Oxygen;-

1. Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels
2. Other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving

Uses of iodine:-

1. Iodine has many commercial uses. Iodide salts are used in pharmaceuticals and disinfectants, printing inks and dyes, catalysts, animal feed supplements and photographic chemicals.
2. Iodine is also used to make polarising filters for LCD displays.

Hope this helps you.

Explanation: