Sarthak Shakya

zinc will react with sulphuric acid forming zinc sulphate dissolved in solution and releasing hydrogen gas.
Zn + conc. 2 H2SO4 ZnSO4 + SO2 + 2 H2O

Zinc is mainly used as a protective coating for iron and steel (galvanising). It is further used for the production of zinc alloys (e.g. brass), rolled zinc, zinc dust (a pigment and a reducing agent), and zinc compounds (e.g. zinc oxide).

• Zinc oxide is the industrially most important zinc compound. It is used in rubber (vulcanising, pigment), photocopy paper, chemicals and paints. Other uses are in floor coverings, in glasses, enamels, fabrics, plastics, lubricants, in rayon manufacture, and...

Reaction of Zn with H2SO4 depends on concentration of acid.

• For dilute acid, zinc sulphate and hydrogen gas at produced.

Zn + H2 SO4 ZnSO4 + H2

• For concentrated sulphuric acid, zinc sulphate , Sulphur dioxide and water are produced.

Zn + conc. 2 H2SO4 ZnSO4 + SO2 + 2 H2O

1. When zinc reacts with very dilute nitric acid it produces NH4.NO3.
4Zn + 10HNO3 (dilute) 4Zn(NO3)2 + NH4NO3 + 3H2O

2. Zinc reacts with dilute Nitric acid to produce Zinc nitrate, nitric oxide and water
3Zn + 8HNO 3Zn(NO) + 2NO + 4HO

3. Zinc reacts with concentrated Nitric acid to produce Zinc nitrate, nitrogen dioxide and water.
Zn + 4HNO Zn(NO) + 2NO + 2HO

1. When zinc reacts with very dilute nitric acid it produces NH4.NO3.
4Zn + 10HNO3 (dilute) 4Zn(NO3)2 + NH4NO3 + 3H2O

2. Zinc reacts with dilute Nitric acid to produce Zinc nitrate, nitric oxide and water
3Zn + 8HNO 3Zn(NO) + 2NO + 4HO

3. Zinc reacts with concentrated Nitric acid to produce Zinc nitrate, nitrogen dioxide and water.
Zn + 4HNO Zn(NO) + 2NO + 2HO