A. Promoter
A.
B. Inhibitor
B.
C. Catalyst
C.
D. Poison
D.
Correct Answer: A
সঠিক উত্তর: A
Explanation
ব্যাখ্যা
In the Haber process, the addition of molybdenum to iron acts as a promoter.
Key Details:
A promoter is a substance that enhances the activity of a catalyst. In the Haber process, iron is the primary catalyst, and molybdenum is added to significantly increase its efficiency.