There are seven aldehydes and ketones • each molecule contains only one oxygen atom • their structures include four or fewer carbon atoms. Alkaline $\text{I}_2(\text{aq})$ is then introduced separately to each carbonyl compound. For how many of these carbonyl compounds is a yellow precipitate formed with alkaline $\text{I}_2(\text{aq})$?
- A1
- B2
- C3
- D4