Q2 of 43 Page 188

Which two substances are used as promoters in manufacture of ammonia gas by Haber’s process?

Two substances which are used as promoters in manufacture of ammonia gas by Haber’s process are:

i. Aluminium oxide (Al2O3)


ii. Potassium oxide (K2O)


They are added to increases the efficiency of the catalyst. Hence, they are called promoters.


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