DP Chemistry (last assessment 2024)
Question 20N.1.sl.TZ0.27
Date | November 2020 | Marks available | [Maximum mark: 1] | Reference code | 20N.1.sl.TZ0.27 |
Level | sl | Paper | 1 | Time zone | TZ0 |
Command term | State | Question number | 27 | Adapted from | N/A |
27.
[Maximum mark: 1]
20N.1.sl.TZ0.27
Which mechanism does benzene most readily undergo?
A. Nucleophilic substitution
B. Electrophilic substitution
C. Electrophilic addition
D. Free radical substitution
[1]
Markscheme
B
Examiners report
Vast majority of candidates understood benzene undergoes substitution rather than addition, with some thinking of it as nucleophilic rather than electrophilic substitution.