Primary , secondary and tertiary alcohols.

https://www.youtube.com/watch?v=HR9dM7Hg7d4

What is an alcohol molecule with two hydroxyl (OH) groups

Its called a diol, e.g ethane - 1,2 diol

What are triols

Alcohols with three hydroxyl groups, e.g propane - 1,2,3 - triol

What happens if an alcohol has another functional group

The alcohol is treated as the parent molecule, suffix ends in ol, this is shown here

What functional groups have naming priority over alcohol functional group

Aldehydes, ketones and carboxylic acids

In these cases, the molecule is named based on higher priority functional group

Alcohol group is shown by prefix hydroxy

E.g , 3-hydroxypropanol and 1-hydroxypropan-2-one

Whats primary alcohol

The carbon atom bonded to hydroxyl group is bonded to one other carbon atom

What is secondary alcohol

The carbon atom is bonded to hydroxyl group, is bonded to two other carbon atoms

What is tertiary alcohol

The carbon atom bonded to the hydroxyl group is bonded to three other carbon atoms