Question

Platinised asbestos is used as a catalyst in, the manufacture of $H_{2}S{O}_4$. It is an example of:

• A. homogeneous catalyst
• B. heterogeneous catalyst
• C. autocatalyst
• D. induced catalyst

Answer 1

Answer: (C)

autocatalyst

Platinised asbestos is a solid catalyst whereas the reactants $S{O}_2$ and $O_2$ and product $S{O}_3$ are in gas phase in the manufacture of sulfuric acid. So the above process is heterogeneous catalysis.

Hence option B is correct.