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Surface Chemistry — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistrySurface Chemistry1 Mark
MCQ
An example of autocatalytic reaction is:
  • ✓
    Decomposition of nitroglycerine.
  • B
    Thermal decomposition of $\mathrm{KClO}_3$ and $\mathrm{MnO}_2$ mixture.
  • C
    Breakdown of ${ }^{14} \mathrm{C}_6$
  • D
    Hydrogenation of vegetable oil using nickel catalysts.
✓

Answer

Correct option: A.
Decomposition of nitroglycerine.
A chemical reaction is called autocatalytic if at least one of the reaction products acts as a catalyst in the same or in one of the coupled reactions. $\mathrm{N}_2$ is one of the products of decomposition of nitroglycerine plays the role of an autocatalyst.

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