Drawing and naming the carboxylic acids
4 marks · NormalThe table below shows the molecular formulae of some carboxylic acids. Complete the table by filling in the missing names.
| Molecular formula | Name |
|---|---|
| C2H4O2 | |
| C4H8O2 | |
| CH2O2 | |
| C3H6O2 |
Write your answers in the table.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Must show: C2H4O2 → ethanoic acid, C4H8O2 → butanoic acid, CH2O2 → methanoic acid, C3H6O2 → propanoic acid
Common mistakes: Switching names
Show mark scheme and worked solution
Marking points
B1 · 1 mark · C2H4O2 named as ethanoic acid
B2 · 1 mark · C4H8O2 named as butanoic acid
B3 · 1 mark · CH2O2 named as methanoic acid
B4 · 1 mark · C3H6O2 named as propanoic acid
Worked solution
| Molecular formula | Name |
|---|---|
| C2H4O2 | ethanoic acid |
| C4H8O2 | butanoic acid |
| CH2O2 | methanoic acid |
| C3H6O2 | propanoic acid |