Question

molecule functional group ch₃ - ch₂ - ch₂ - ch = o aldehyde ch₃ | ch₃ - c - nh - ch₃ | ch₃ ch₃ - ch₂ - oh ch₃ - ch - c ≡ ch | ch₃

Explanation:

Step1: Identify functional group in second molecule

The molecule has a carbon - nitrogen bond with the carbon also bonded to three methyl groups. It is an amine.

Step2: Identify functional group in third molecule

The molecule contains an -OH group attached to an alkyl chain, which is an alcohol.

Step3: Identify functional group in fourth molecule

The molecule has a carbon - carbon triple bond, which is an alkyne.

Answer:

Amine, Alcohol, Alkyne