Q7 / 150 · MHT CET 2026 (20 April Shift 2) · Chemistry
In Haber process of production of ammonia $\text{Al}_2\text{O}_3$ is used as
- AAdsorbate
- BInhibitor
- CCatalyst
- Correct answerDPromoter
Solution
In the Haber process for the synthesis of ammonia, finely divided iron is used as the catalyst.
To enhance the activity of the iron catalyst, small amounts of aluminum oxide ($\text{Al}_2\text{O}_3$) and potassium oxide ($\text{K}_2\text{O}$) are added.
Substances that increase the efficiency or activity of a catalyst are known as promoters. Therefore, $\text{Al}_2\text{O}_3$ acts as a promoter.
Answer: Promoter
To enhance the activity of the iron catalyst, small amounts of aluminum oxide ($\text{Al}_2\text{O}_3$) and potassium oxide ($\text{K}_2\text{O}$) are added.
Substances that increase the efficiency or activity of a catalyst are known as promoters. Therefore, $\text{Al}_2\text{O}_3$ acts as a promoter.
Answer: Promoter
Hence, the correct answer is option: 'D'.