Q. Platinum is used as a catalyst in :

A) Oxidation of ammonia to form nitric acid
B) Hardening of oils
C) Production of synthetic rubber
D) Synthesis of methanol
Explanation

(a)
$4NH_{3} + 5\ O_{2}\overset{Pt}{\rightarrow}\ 4NO + 6H_{2}O$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.