| Date | May 2010 | Marks available | 2 | Reference code | 10M.3.hl.TZ1.D1 |
| Level | HL | Paper | 3 | Time zone | TZ1 |
| Command term | Suggest | Question number | D1 | Adapted from | N/A |
Question
Aspirin, paracetamol (acetaminophen), morphine and diamorphine (heroin) are all pain killers. Their structures are given in Table 20 of the Data Booklet.
Suggest a reagent that could be used to convert morphine into diamorphine and state the name of the type of reaction taking place.
Markscheme
ethanoic acid / ethanoic anhydride / ethanoyl chloride;
Accept formula instead of name.
diesterification / esterification / condensation;
Examiners report
Most could name the type of the reaction, and many did not name the reagent, with “carboxylic acid” being a common answer.
