DP Chemistry (last assessment 2024)
Question 22M.2.hl.TZ2.d(ii)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.hl.TZ2.d(ii) |
| Level | hl | Paper | 2 | Time zone | TZ2 |
| Command term | Deduce | Question number | d(ii) | Adapted from | N/A |
d(ii).
[Maximum mark: 1]
22M.2.hl.TZ2.d(ii)
Carbon forms many compounds.
Write the equation for the reaction between but-2-ene and hydrogen bromide.
[1]
Markscheme
CH3CH=CHCH3 + HBr (g) → CH3CH2CHBrCH3
Correct reactants ✔
Correct products ✔
Accept molecular formulas for both reactants and product
Examiners report
Well done in general and most candidates wrote correct reagents, eventually losing a mark when considering H2 to be a product alongside 2-bromobutane.
