Q. Which is an example of a heterogeneous catalysis?
A) Formation of $SO_{3}$ in the chamber process
B) Formation of $SO_{3}$ in the contact process
C) Hydrolysis of an ester in the presence of $H^{+}$ ions
D) Combination of $H_{2}$ and $Cl_{2}$ in the presence of moisture
Explanation
(b)
$2SO_{2}(g) + O_{2}(g)\overset{Pt(s)}{\rightarrow}\ 2SO_{3};$ Phase for reactant + catalyst = 2;
Thus, heterogeneous.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.