1) Iron
➢ Production of steel (Alloy → Fe + C)
Reason for using iron – It is malleable with high tensile strength
➢ Production of pig iron (Intermediate product → Iron production)
Reason for using iron – It forms cheap cast
2) Gold
➢ Making Jewellery
Reason for using gold – It is Lustrous, malleable & ductile
➢ Production of medicine
Gold particles are used for cancer treatment
3) Copper
➢ To make electrical cables
Reason for using copper – It is good conductor of electricity, ductile
Reason for using copper – It is good conductor of heat, malleable
3) Aluminium
➢ To make utensils
Reason for using aluminium – It is good conductor of heat, malleable
➢ Packaging food stuffs
Reason for using aluminium – It is malleable
4) Zinc
➢ Used for galvanizing (Coating Zn on Fe)
Reason for using zinc – Zn is more reactive than Fe therefore, it prevents rusting of iron.
5) Lead
➢ Used to make bullets
6) Magnesium
➢ Used to make fireworks
Why? à Mg burns with dazzling light
➢ Photography
7) Hydrogen
➢ Converts vegetable oils to ghee
➢ Used to produce ammonia which in turn is used to produce fertilisers
8) Helium
➢ To fill weather observation balloons
9) Neon
➢ Used in advertising signboards
➢ Used in tubelights
10) Argon
➢ Used in bulbs
➢ Used for preservation of historical documents
11) Krypton & Xenon
➢ Used in photography
12) Radon
➢ Used for cancer treatment
13) Oxygen
➢ Necessary for combustion
➢ Necessary for respiration
14) Nitrogen
➢ Used for protein synthesis by plants
➢ Used to produce ammonia which in turn is used to produce fertilisers
➢ Filled in packets of chips
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