DP Chemistry (last assessment 2024)
Question 19N.3.sl.TZ0.12b(ii)
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.sl.TZ0.12b(ii) |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | Deduce | Question number | b(ii) | Adapted from | N/A |
b(ii).
[Maximum mark: 1]
19N.3.sl.TZ0.12b(ii)
Octane number is a measure of the performance of engine fuel.
(b(ii))
The 1H NMR spectrum of one of the products has four signals. The integration trace shows a ratio of the areas under the signals of 9 : 3 : 2 : 2.
Deduce the structural formula of the product.
[1]
Markscheme
NOTE: Accept a skeletal formula or a full or condensed structural formula.
Penalise missing hydrogens or bond connectivities once only in Option C.
