Chemistry · Oct / Nov 2020 · Paper 12 · Question 37

A sample of aqueous glucose is fermented with yeast at 37 °C in the absence of air. The main organic product, X, is purified by fractional distillation. X is then oxidised, by heating under reflux with acidified potassium manganate(VII), to give a final product Y. What is the identity of Y?

1. Aethanoic acid
2. Bethene
3. Cpropanoic acid
4. Dpropene

As printed in the paper