hydroxyl
A functional group is a group that defines the molecule.As you know the molecule in question is an alcohol then the functional group is an OH group
Carbonyl
C20H24N2O2
Polarity occurs when there are un-bonded electrons within the molecule. Without the alcohol functional group, the cholesterol molecule would be non-polar. However, since there is an alcohol functional group, the oxygen's extra electrons cause this molecule to be polar. This alcohol functional group allows the possiblility of linking with other molecules using an ester or hydroxyl bond.
Alcohols have the functional group -OH, which is derived from the inorganic molecule water (H2O). In alcohols, the hydrogen from water is replaced by an organic group.
Functional group is a part of an organic molecule which takes a part in chemical reaction for example in alcohols functional group is -OH , in carboxylic acids is -COOH and so on, but formaldehyde CH2O is a molecule and it is completely a functional group.
An alcohol is an organic molecule that contains the hydroxyl (-OH) functional group. Any organic compound whose molecules contains one or more hydroxyl groups is classified as an alcohol.
The hydroxyl (OH) functional group belongs to the alcohol group. It is a specific type of functional group that is characterized by an oxygen atom connected to a hydrogen atom, bonded to a carbon atom in an organic molecule.
A condensation reaction involves the loss of a small molecule like water or alcohol. If a molecule has only one functional group available for reaction, there is no additional site for the loss of a molecule, which is necessary to form a polymer chain. Hence, a molecule with only one functional group cannot undergo condensation polymerization to form a polymer.
Alcohol
Ethyl alcohol (ethanol) is a polar molecule. This is because ethanol contains a polar hydroxyl (-OH) functional group, which creates an uneven distribution of charge within the molecule, leading to positive and negative regions.
The functional group in alcohols is -OH (hydroxyl).