Question

Why is pure (24 carat) gold not suitable for making ornaments? which gold will you use instead?

Answer 1

because pure gold has the properties of malleability and ductility and are very soft hence some amount of copper is added

Answer 2

Pure gold, known as 24 carat gold, is very soft. It is, therefore, not suitable for making  jewelry.

It is alloyed with either silver or copper to make it hard.

Generally, in India,  22 carat gold is used for making ornaments.

It means that 22 parts of pure gold is  alloyed with 2 parts of either copper or silver.