HI !
Alcohol(-OH) compounds are formed when one hydrogen of alkane molecule is replaced by a hydroxyl group.
Compounds:- R-C-O-R R-C-O-H R-C-H/ R-C-R R-CH = CH-R
Functional group:- -C=O -CHO - C- -CH = CH-
Name:- Ketone Aldehyde alkane alkene