Ammonia is used in the Ostwald process,

(a) Give the source of reactants used in this process.

(b) Name the catalyst used in the process.

(c) Name the oxidising agent used in this process.

(d) What is the ratio of ammonia and air taken in this process?

(e) Why is quartz used in this process?

(a) Dry air (free from carbon dioxide and dust particles) and dry ammonia produced in Haber’s process.

(b) Platinum gauze

(c) Oxygen

(d) 1:10 i.e., 1 volume of ammonia and 10 volume of air.

(e) Quartz is acid resistant and when packed in layers, it slows down the movement of the gaseous NO₂ so that it can dissolve in water uniformly.