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KCET2010Chemistryd and f Block Elements

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

Options

  1. AManufacture of sulphuric acid by Contact process
  2. BManufacture of ammonia by Haber's process
  3. CHydrolysis of sucrose in presence of dilute hydrochloric acid
  4. DHydrogenation of oil

Correct answer

C. Hydrolysis of sucrose in presence of dilute hydrochloric acid

Step-by-step solution

In homogeneous catalysis, reactants and catalyst are in the same phase. (a) SO ₂( ~g )+ O ₂( ~g ) Pt ( s ) SO ₃( ~g ) (Contact process) It is an example of heterogeneous catalysis. (b) N ₂( ~g )+ H ₂( ~g ) Fe ( s ) 2 NH ₃( ~g ) (Haber's process) It is an example of heterogeneous catalysis. (c) C ₁₂ H ₂₂ O ₁₁( aq )+ H ₂ O ( aq ) HCl ( aq ) C ₆ H ₁₂ O ₆+ C ₆ H ₁₂ O ₆ It is an example of homogeneous catalysis. (d) Thus, it is also an example of heterogeneous catalysis.

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