Question -
Answer -
(i) Oxidationof sulphur dioxide to form sulphur trioxide. In this reaction, Pt acts as acatalyst.
(ii) Formationof ammonia by the combination of dinitrogen and dihydrogen in the presence offinely divided iron.
This process is called theHaber’s process.
(iii) Oswald’sprocess: Oxidation of ammonia to nitric oxide in the presence of platinum.
(iv) Hydrogenationof vegetable oils in the presence of Ni.