Chapter 16:Sulphuric acid

SO2

________ is prepared by burning sulphur in the presence of excess air so that the product combines with oxygen which is helpful for the next stage.

Acid rain

________ is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air.

Sulphur trioxide

________ is formed when sulphur dioxide reacts with oxygen in a ratio of 1: 1 at a temperature of 400 °C- 450°C and a pressure of 1- 2 atm in the presence of V2O5 as a catalyst.

Sulphur Dioxide (So2)

gas formed when sulphur burns in air

Sulphur trioxide(So3)

involves the catalytic oxidation of sulphur dioxide which is carried out industrially in the Contact process