Step 1: Understanding the Question
The question asks about the chemical process primarily used in the production of ammonia for fertilizers. Ammonia is a key component in many fertilizers, and its industrial production is crucial to agriculture.
Step 2: Reviewing the Processes in the Options
Let’s evaluate the processes listed in the options:
Ostwald process: This is used for producing nitric acid, not ammonia.
Haber-Bosch process: This process is used for producing ammonia, a key component in fertilizers, by combining nitrogen and hydrogen under high pressure and temperature with an iron catalyst.
Contact process: This is used for producing sulfuric acid, not ammonia.
Solvay process: This is used for producing sodium carbonate (soda ash), not ammonia.
Step 3: Conclusion
The correct process for producing ammonia for fertilizers is the Haber-Bosch process.
Answer: (2) Haber-Bosch process