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Chemistry · Oct / Nov 2023 · Paper 11 · Question 37

5070Alcohols

Glycerol is an alcohol with three –OH groups per molecule. [glycerol structure] What is the equation for the combustion of glycerol?

  1. AC3H8O3 + 5O2 → 3CO2 + 4H2O
  2. B2C3H8O3 + 3O2 → 6CO2 + 8H2
  3. C2C3H8O3 + 7O2 → 6CO2 + 8H2O
  4. D4C3H5O3 + 11O2 → 12CO2 + 10H2O

As printed in the paper

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Correct answer: C. 2C3H8O3 + 7O2 → 6CO2 + 8H2O

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