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JIPMER 2014
Exam
JIPMER
Year
2014
Subject
Chemistry
Chapter
Surface Chemistry

JIPMER 2014 · Chemistry · Surface Chemistry

Which of the following is an example for heterogeneous catalysis...

Which of the following is an example for heterogeneous catalysis reaction?

Options

  1. A2SO2(g)+O2(g)→NO(g)2SO3(g)2 \mathrm{SO}_2(g)+\mathrm{O}_2(g) \xrightarrow{\mathrm{NO}(g)} 2 \mathrm{SO}_3(g)
  2. BHydrolysis of aqueous sucrose solution in the presence of a aqueous mineral acid
  3. C2H2O2(l)→Pt(s)2H2O(l)+O2(g)2 \mathrm{H}_2 \mathrm{O}_2(l) \xrightarrow{\mathrm{Pt}(\mathrm{s})} 2 \mathrm{H}_2 \mathrm{O}(l)+\mathrm{O}_2(g)
  4. DHydrolysis of liquid in the presence of aqueous mineral acid

Correct answer

C. 2H2O2(l)→Pt(s)2H2O(l)+O2(g)2 \mathrm{H}_2 \mathrm{O}_2(l) \xrightarrow{\mathrm{Pt}(\mathrm{s})} 2 \mathrm{H}_2 \mathrm{O}(l)+\mathrm{O}_2(g)

Step-by-step solution

2H2O2(I)→Pt(s)2H2O(2 \mathrm{H}_2 \mathrm{O}_2(I) \xrightarrow{\mathrm{Pt}(\mathrm{s})} 2 \mathrm{H}_2 \mathrm{O}(\mathrm{I})+O2( g))+\mathrm{O}_2(\mathrm{~g}) In this reaction, reactant and catalyst are in different phase, hence it is an example of heterogeneous catalysis.
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