|-OH groups take precedence over halo and alkyl groups.|
Number the chain to give the -OH the lowest possible number.
The hydroxyl group is capable of donating and accepting a hydrogen bond. This causes alcohols to have properties that are very different to alkanes.
|H-bonding increases the coiling point and water solubility of alcohols over alkanes and alkyl halides.|
Alcohols containing 4 carbons or less are water soluble.
Water solubility decreases with increasing length of the carbon chain.