DP Chemistry (last assessment 2024)
Question 22M.2.sl.TZ2.4d(i)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.sl.TZ2.4d(i) |
| Level | sl | Paper | 2 | Time zone | TZ2 |
| Command term | Draw | Question number | d(i) | Adapted from | N/A |
d(i).
[Maximum mark: 1]
22M.2.sl.TZ2.4d(i)
Carbon forms many compounds.
But-2-ene reacts with hydrogen bromide.
(d(i))
Draw the full structural formula of but-2-ene.
[1]
Markscheme
Accept
Examiners report
A well answered question. 70% of the candidates gave the correct structural formula for but-2-ene. Mistakes included too many hydrogens in the structure and an incorrect position of the C=C. Candidates should be reminded that the full structural formula requires all covalent bonds to be shown.
