DP Chemistry (last assessment 2024)
Question 22M.1.sl.TZ2.22
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.sl.TZ2.22 |
| Level | sl | Paper | 1 | Time zone | TZ2 |
| Command term | Deduce | Question number | 22 | Adapted from | N/A |
22.
[Maximum mark: 1]
22M.1.sl.TZ2.22
Which combination best describes what is happening to chloromethane, CH3Cl, in the equation below?
CH3Cl (g) + H2 (g) CH4 (g) + HCl (g)
A. Oxidation and addition
B. Oxidation and substitution
C. Reduction and addition
D. Reduction and substitution
[1]
Markscheme
D
Examiners report
57% of the candidates were able to identify the type of reaction (oxidation or reduction & addition or substitution) correctly.