1 is a secondary alcohol.
2 is not an alcohol since it has no C-OH group. They way you have it drawn it is an ether.
I can't tell what three is.
I know the following are alcohols. Are the primary, secondary or tertiary and what is the IUPAC name.
1. CH3CHCH2CH3
.......|
.......OH (OH falls directly underneath the "CH"
2. CH3CH2-O-hexagon shape (I can't draw this out)
3. CH3 which is branched down to CH-CH2-CH2-OH which has CH3 again underneath and branched out
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