cis-1,3-cyclohexanediol is a cyclic compound with two hydroxyl groups -OH attached to carbons 1 and 3 of the cyclohexane ring. A chiral center also known as a stereocenter is a carbon atom that is bonded to four different groups. In cis-1,3-cyclohexanediol, both carbons 1 and 3 are bonded to four different groups: a hydrogen atom, a hydroxyl group, and two different carbon atoms from the cyclohexane ring. Therefore, there are two chiral centers in cis-1,3-cyclohexanediol.Since cis-1,3-cyclohexanediol has chiral centers, it can exist in different stereoisomeric forms enantiomers . Enantiomers are non-superimposable mirror images of each other and can rotate plane-polarized light in opposite directions. A compound is considered optically active if it can rotate plane-polarized light.As cis-1,3-cyclohexanediol has chiral centers and can exist in enantiomeric forms, it is considered optically active.