DP Chemistry (last assessment 2024)
Question 20N.2.sl.TZ0.1d(i)
| Date | November 2020 | Marks available | [Maximum mark: 1] | Reference code | 20N.2.sl.TZ0.1d(i) |
| Level | sl | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | d(i) | Adapted from | N/A |
d(i).
[Maximum mark: 1]
20N.2.sl.TZ0.1d(i)
Chlorine undergoes many reactions.
(d(i))
State the type of reaction occurring when ethane reacts with chlorine to produce chloroethane.
[1]
Markscheme
«free radical» substitution/ ✔
Do not accept electrophilic or nucleophilic substitution.
Examiners report
More than half of the candidates identified the type of reaction between ethane and chlorine as a substitution reaction. A few candidates lost the marks for writing 'electrophilic substitution' or 'nucleophilic substitutions'.
