Question

5 example of promoters in chemistry

Answer 1

Five examples are

i) in Haber’s process for the synthesis of ammonia, traces of molybdenum increases the activity of finely divided iron which acts as a catalyst.

(ii) In the manufacture of methyl alcohol from water gas , chromic oxide is used as a promoter with the catalyst zinc oxide .

iii) the presence of traces of arsenious oxide in the reacting gases reduces the activity of platinized asbestos which is used as catalyst in contact process for the manufacture of sulphuric acid.

{iv) The activity of iron catalyst is destroyed by the presence of or in the synthesis of ammonia by Haber’s process.

(v) The platinum catalyst used in the oxidation of hydrogen is poisoned by .