A. Contact process
A.
B. Ostwald process
B.
C. Haber process
C.
D. Solvay process
D.
Correct Answer: C
সঠিক উত্তর: C
Explanation
ব্যাখ্যা
Ammonia (NH3) is produced industrially by the Haber-Bosch process. This process combines nitrogen (N2) and hydrogen (H2) under specific conditions (high pressure and moderate temperature) using an iron catalyst to synthesize ammonia.