Question

Which one of the following is an example for homogeneous catalysis?

• A. Manufacture of ammonia by Haber's process
• B. Manufacture of sulphuric acid by contact process
• C. Hydrogenation of oil
• D. Hydrolysis of sucrose in presence of dilute hydrochloric acid

Answer 1

Answer: (D)

Hydrolysis of sucrose in presence of dilute hydrochloric acid

Answer 2

In homogeneous catalysis, reactants and catalyst are in the same phase. (a) $SO _{2}(g)+ O _{2}(g) \stackrel{ Pt (s)}{\rightleftharpoons} SO _{3}(g)$ (Contact process) It is an example of heterogeneous catalysis. (b) $N _{2}(g)+ H _{2}(g) \stackrel{ Fe (s)}{\rightleftharpoons} 2 NH _{3}(g)$ (Haber's process) It is an example of heterogeneous catalysis. (c) $C _{12} H _{22} O _{11}(a q)+ H _{2} O (a q) \stackrel{ HCl (a q)}{\rightleftharpoons} C _{6} H _{12} O _{6}$ $+ C _{6} H _{12} O _{6}$ It is an example of homogeneous catalysis. ${Oil (l) +H_2(g) ->[{(Hardening)}][{Pt(s)}] fat}$ Thus, it is also an example of heterogeneous catalysis.