Copper sulphate is commercially made from copper scrap by

Question

Copper sulphate is commercially made from copper scrap by (A) heating with sodium sulphate (B) heating with sulphur (C) action of dil sulphuric acid and air (D) dissolving in hot concentrated sulphuric acid

Tardigrade Admin · Accepted Answer

Commercially copper sulphate is made from copper scrap by the action of dil. Sulphuric acid and air.

C u + H_{2} O_{4} + \frac{1}{2} O_{2} \to C u S O_{4} + H_{2} O

Copper reacts with

H_{2} S O_{4}

only in presence of oxygen. Copper does not liberate hydrogen from acid because it lies below hydrogen in electrochemical series.

Q. Copper sulphate is commercially made from copper scrap by

heating with sodium sulphate

heating with sulphur

action of dil sulphuric acid and air

dissolving in hot concentrated sulphuric acid