Classify the following functional groups:

1)CH3CH = CH2 I think this is an alkene

2) CH3CHCH3 I think it is an alcohol.
!
OH

Would you agree with my answers?

Yes. The first one is an alkene. The second is an alcohol. Will your prof let you get away with that. It is an alcohol yes, but more specifically it is a secondary alcohol.

CH3CH2OH is a primary alcohol. OH attached to C with two H atoms.
CH3CH(OH)CH3 is a secondary alcohol. OH attached to C with one H atom.
(CH3)3COH is a tertiary alcohol. OH attached to C with no H atoms.