A) Manufacture of sulphuric acid by Contact process
B) Manufacture of ammonia by Habeas process
C) Hydrolysis of sucrose in presence of dilute hydrochloric acid
D) Hydrogenation of oil
Correct Answer: C
Solution :
In homogeneous catalysis, reactants and catalyst are in the same phase. (a) \[S{{O}_{2}}(g)+{{O}_{2}}(g)S{{O}_{3}}(g)\] (Contact process) It is an example of heterogeneous catalysis. (b)\[{{N}_{2}}(g)+{{H}_{2}}(g)2N{{H}_{3}}(g)\] (Habers process) It is an example of heterogeneous catalysis. (c)\[{{C}_{12}}{{H}_{22}}{{O}_{11}}(aq)+{{H}_{2}}O(aq){{C}_{6}}{{H}_{12}}{{O}_{6}}\] \[+{{C}_{6}}{{H}_{12}}{{O}_{6}}\] It is an example of homogeneous catalysis. (d)\[Oil(l)+{{H}_{2}}(g)\xrightarrow[Pt\,(s)]{(Hardening)}fat\] Thus, it is also an example of heterogeneous catalysis.
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