DP Chemistry (last assessment 2024)
Question 22M.2.hl.TZ1.5d(i)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.hl.TZ1.5d(i) |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Identify | Question number | d(i) | Adapted from | N/A |
d(i).
[Maximum mark: 1]
22M.2.hl.TZ1.5d(i)
Organomagnesium compounds can react with carbonyl compounds. One overall equation is:
Iodomethane is used to prepare CH3Mg. It can also be converted into methanol:
CH3 + HO– → CH3OH + –
(d(i))
Identify the type of reaction.
[1]
Markscheme
«nucleophilic» substitution
OR
SN2 ✔
Accept “hydrolysis”.
Accept SN1
Examiners report
Excellent performance on the type of reaction but with some incorrect answers such as alkane substitution, free radical substitution or electrophilic substitution.
