Chemistry · May / June 2016 · Paper 12 · Question 36

Wine is an alcoholic drink that contains ethanol. If wine is left exposed to the air for too long, it can become acidic. This is because the ethanol is ......1...... to the acid ......2...... . Which word and formula correctly complete gaps 1 and 2?

1. Aoxidised, CH3COOH
2. Boxidised, CH3CH2COOH
3. Creduced, CH3COOH
4. Dreduced, CH3CH2COOH

As printed in the paper