6. SULPHURIC ACID
Sulphuric acid is most commonly used in laboratories ad
Plastic , chemical & fertilizers are also made from
sulphuric acid.
7. HYDROCHLORIC ACID
Its is harmful too . Hydrochloric acid is
strongest acid.
This acid is used I different industries.
It is used in purification of salt.
8. NITRIC ACID
Nitric acid is mainly used in manufacturing
fertilizers. It is widely used in extraction of
gold and silver.