Q. Which requires catalyst?
A) S+ O_{2}⟶SO_{2}
B) 2S O_{2}+ O_{2}⟶2SO_{3}
C) C + O_{2} ⟶CO_{2}
D) All of the above
Explanation
(b)
Plantinished asbestos or vanadium pentaoxide ($V_{2}\ O_{5})$ is used as catalyst in the preparation of sulphur trioxide from SO_{2} and oxygen.
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Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.