DP Chemistry (last assessment 2024)
Question 22M.2.hl.TZ1.5c
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.hl.TZ1.5c |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Deduce | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
22M.2.hl.TZ1.5c
Organomagnesium compounds can react with carbonyl compounds. One overall equation is:
(c)
Deduce what would be observed when Compound B is warmed with acidified aqueous potassium dichromate (VI).
[1]
Markscheme
no change «in colour/appearance/solution» ✔
Examiners report
Mediocre performance; deducing whether the tertiary alcohol could be oxidized solicited mixed responses ranging from the correct one, namely no change (in colour, appearance or solution), to tertiary alcohol will be reduced, or oxidized, or colour will change will occur, and such.
