Question

Which of the following catalysts is used in the manufacture of ammonia by Haber’s process?

• A. \( \text{Al}_2\text{O}_3 \)
• B. \( \text{Fe} + \text{Mo} \)
• C. \( \text{CuO} \)
• D. \( \text{Pt} \)

Hint:

The Haber process uses iron combined with molybdenum as a catalyst to synthesize ammonia from nitrogen and hydrogen gases.

Answer 1

The Correct Option is B

Step 1: Understanding Haber’s process.
Haber's process is used to synthesize ammonia by reacting nitrogen and hydrogen gases in the presence of a catalyst. The process requires a catalyst to increase the rate of the reaction. Step 2: Analysis of options.
(A) \( \text{Al}_2\text{O}_3 \): Aluminum oxide is not used as a catalyst in the Haber process.
(B) \( \text{Fe} + \text{Mo} \): The combination of iron (Fe) with molybdenum (Mo) is used as the catalyst in the Haber process to facilitate the production of ammonia.
(C) \( \text{CuO} \): Copper oxide is not used in the Haber process.
(D) \( \text{Pt} \): Platinum is used as a catalyst in some reactions but not in the Haber process.
Step 3: Conclusion.
The correct answer is (B) because iron and molybdenum are the catalysts used in the Haber process for ammonia synthesis.