Which of the following compounds are secondary alcohols? I. II. III. IV. V. VI. VII. VIII. CH ₃ OH IX. CH ₃ CH ₂ I

Step-by-step solution

To identify the secondary alcohols, we need to find the compounds where the hydroxyl ( - OH ) group is attached to a secondary carbon atom (a carbon atom bonded to exactly two other carbon atoms). Let us evaluate each compound: I. Bromomethylcyclohexane: It is an alkyl halide, not an alcohol. II. Cyclohexanol: The - OH group is attached to a carbon atom of the cyclohexane ring. This carbon is bonded to two other ring carbons, making it a secondary alcohol. III. The structure shows a tertiary carbon bonded to an - O