Seven aldehydes and ketones • Each molecule has just one oxygen atom. • Each structure contains no more than four carbon atoms. The seven carbonyl compounds are tested one by one with alkaline $\text{I}_2\text{(aq)}$. For how many of these carbonyl compounds is a yellow precipitate formed with alkaline $\text{I}_2\text{(aq)}$?
- A1
- B2
- C3
- D4