[PharmMajor]

I have  a dilemma about functional groups. I am not sure if those are most of the common functional groups or not. The textbook is not very clear and my prof didn't go over all of them. And I am supposed to know them  . So here are the ones that I know and the book states them. But for two of them is unclear.
  Alkane
  Alkene
  Alkyne
  Aromatic
  Haloalkane
  Alcohol
  Phenol
  Ether
  Phenyl and Benzyl (unsure, the textbook is confusing on these two)
  Amine
  Aldehyde
  Ketone
  Carboxylic acid
  Ester
  Amide
  Nitrile

Are those right? Can someone please help me. If i am missing something or have extra please let me know.

[Hunter2]

This are not functionel groups

Alkane,  Alkene,  Alkyne,  Aromatic,  Haloalkane,
Phenyl C₆H₅- and Benzyl C₆H₅-CH₂-

These containing functional groups:

Alcohol,  Phenol,  Ether,

These are functional groups: Amine,  Aldehyde,  Ketone,  Carboxylic acid,  Ester,  Amide,  Nitrile

A funstional group is Hydroxyl -OH (Alcolohls, phenols)
oxo -O- (Ether)
Amin -NH₂
Aldehyde -CHO
Carboxyl -COOH
Ester -COO-
Amide -N-CO-
Nitril -CN

[Ben Bob2]

Phenyl and benzyl (and phenol) confused me too, at the start.

If you take a benzene ring and attach it to any arbitrary "R" group, the attached benzene ring is referred to as phenyl.

Now, picture a benzene ring attached to a chain or group via a secondary carbon: the benzene ring and the secondary carbon atom it is attached to are referred to collectively as benzyl.

[PharmMajor]

Thank you so much Hunter2 and Ben Bob2! Now it makes more sense.