Cyclohexanol

Cyclohexanol is a secondary alcohol, formula C6H11OH, consisting of a cyclohexane ring with one hydrogen substituent replaced by a hydroxyl group.

It can be oxidized to cyclohexanone by chromic acid(by dissolving sodium dichromate in water and concentrated sulfuric acid. The oxidation will stop at cyclohexanone, as a stronger oxidizing agent is required to break the carbon bond.

Refractive index = 1.465