A) \[2S{{O}_{2}}(g)+{{O}_{2}}(g)\xrightarrow{No(g)}2S{{O}_{3}}(g)\]
B) Hydrolysis of aqueous sucrose solution in the presence of a aqueous mineral acid
C) \[2{{H}_{2}}{{O}_{2}}(l)\xrightarrow{Pt(s)}2{{H}_{2}}O(l)+{{O}_{2}}(g)\]
D) Hydrolysis of liquid in the presence of aqueous mineral acid
Correct Answer: C
Solution :
\[2{{H}_{2}}{{O}_{2}}(l)\xrightarrow{Pt(s)}2{{H}_{2}}O(l)+{{O}_{2}}(g).\] In this reaction, reactant and catalyst are in different phase, hence it is an example of heterogeneous catalysis.
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