DP Chemistry (last assessment 2024)
Question 19M.1.sl.TZ2.26
Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.sl.TZ2.26 |
Level | sl | Paper | 1 | Time zone | TZ2 |
Command term | Question number | 26 | Adapted from | N/A |
26.
[Maximum mark: 1]
19M.1.sl.TZ2.26
Methane reacts with chlorine in sunlight.
CH4 (g) + Cl2 (g) → CH3Cl (g) + HCl (g)
Which type of reaction occurs?
A. free-radical substitution
B. electrophilic substitution
C. nucleophilic substitution
D. electrophilic addition
[1]
Markscheme
A
Examiners report
74 % of the candidates chose free-radical substitution as the type of reaction occurring between methane and chlorine in sunlight.