See image — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

Step 1: Identify the parent chain/ring. The structure shows a six-membered carbocyclic (cyclohexane) ring, so the parent name is 'cyclohexane'. Step 2: Identify the functional groups. There are three hydroxyl (-OH) groups attached to the ring, making this a triol. The suffix becomes '-triol'. Step 3: Number the ring to give the substituents the lowest possible locants. The three -OH groups are attached at alternating carbons of the ring (every other carbon), which corresponds to positions 1, 3, and 5. Step 4: Verify the locant set. Numbering gives positions 1, 3, 5 for the three OH groups. The sum is 1+3+5=9, which is the lowest possible set for three substituents on alternating carbons of a six-membered ring. Step 5: Assemble the IUPAC name. Parent ring: cyclohexane + three OH groups at C1, C3, C5 → cyclohexane-1,3,5-triol. No stereodescriptors are indicated in the flat structural drawing, so none are added to the name. Therefore, the correct answer is cyclohexane-1,3,5-triol.