Identify the functional group(s) that appear in the molecule cortisone (a major hormone synthesized by the human adrenal cortex).

Ketone, alcohol and unsaturation

Explanation:

The functional groups are the groups that identify the organic function of the molecule. For example, the hydroxyl (-OH) represents alcohol, the carbonyl (represented in the figure below) can represent a ketone or an aldehyde, and so each function has its representation.

The cortisone molecule is represented below, and each group is marked in blue. They are:

a, c, and d = carbonyl of ketone;

b =  unsaturation (double bond) of alkene;

e, and f = hydroxyl of alcohol.

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