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Question: Answered & Verified by Expert
$2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \stackrel{\mathrm{V}_{2} \mathrm{O}_{5}}{\rightleftharpoons}$ is an example for
Chemistryd and f Block ElementsKCETKCET 2007
Options:
  • A neutralisation reaction
  • B homogeneous catalysis
  • C heterogeneous catalysis
  • D irreversible reaction
Solution:
2454 Upvotes Verified Answer
The correct answer is: heterogeneous catalysis
$2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \underset{\text { (solid) }}{\stackrel{\mathrm{V}_{2} \mathrm{O}_{5}}{\rightleftharpoons}} 2 \mathrm{SO}_{3}(g)$
In this reaction reactants as well as the catalyst are present in more than one phase hence it is an example of heterogenous catalysis.

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