Question

(3) Small amount of copper is added to gold and silver while making
jewellery: Why?​

Answer 1

Answer:

Reason why small amount of copper is added to gold and silver while making jewellery : It is because pure gold and silver in its original state is highly soft. ... Thus in order to make them hard, copper is added due to which the gold gets the flexibility and can be molded into different shapes according to the design.

Answer 2

Answer:

Copper or silver is added to pure gold to make it hard.This is alloyed with silver or copper to make it hard. Generally 22 carat gold is called ornamental gold which is used for making ornaments. 22 carats gold contain 22 parts of pure gold and 2 parts of either copper or silver