What is aqua fortis ?

What is aqua regia ?

During thunderstorms, rain water contains nitric acid. Explain with reactions.

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?