Platinum, gold and silver are used to make jewellery because the metals used in jewellery are always be chosen on the basis of its reactivity. It should be unreactive so that the metal does not tarnish. Many metals used for jewellery are expensive as well because they are rare.
Platinum Gold and silver are used to make jewellery because of the following reasons.
- They are highly lustrous metals which are resistant to corrosion.
- They are highly malleable and ductile so can be transformed into any shape or design.
The main reason is that gold and platinum are not readily oxidized by oxygen or other nonmetals, they do not tarnish readily.