DP Chemistry (last assessment 2024)
Question 18M.2.hl.TZ1.3b
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.2.hl.TZ1.3b |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Formulate | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 2]
18M.2.hl.TZ1.3b
This question is about ethene, C2H4, and ethyne, C2H2.
(b)
Ethyne reacts with chlorine in a similar way to ethene. Formulate equations for the following reactions.
[2]
Markscheme
ethyne: C2H2 + Cl2 → CHClCHCl
benzene: C6H6 + Cl2 → C6H5Cl + HCl
Accept “C2H2Cl2”.
[2 marks]