DP Chemistry (first assessment 2025)
Question 22M.2.SL.TZ2.8d(iii)
Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.SL.TZ2.8d(iii) |
Level | SL | Paper | 2 | Time zone | TZ2 |
Command term | State | Question number | d(iii) | Adapted from | N/A |
d(iii).
[Maximum mark: 1]
22M.2.SL.TZ2.8d(iii)
(d(iii))
State the type of reaction.
[1]
Markscheme
«electrophilic» addition/EA ✔
Do not accept nucleophilic or free radical addition.
Examiners report
Very well answered, some mentioned halogenation which is a different reaction.

Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.4—Electron-pair sharing reactions » Reactivity 3.4.6—A Lewis acid is an electron-pair acceptor and a Lewis base is an electron-pair donor. Apply Lewis acid–base theory to inorganic and organic chemistry to identify the role of the reacting species.