See image — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

Step 1 - Identify the parent structure: The structure shows a cyclohexane ring, which is a six-membered saturated carbocyclic ring. Step 2 - Identify the functional group: A CN (nitrile/cyano) group is directly attached to the cyclohexane ring at C1. Step 3 - Apply IUPAC nomenclature rules for nitriles: When a -CN group is directly attached to a ring carbon, the carbon of the CN is counted as C1, and the compound is named as 'cycloalkane carbonitrile'. The CN carbon is included in the name as 'carbonitrile' suffix. Step 4 - Construct the name: The parent ring is cyclohexane, and the attached -CN group gives the suffix 'carbonitrile', yielding 'cyclohexane carbonitrile'. Step 5 - Verify: No other substituents are present on the ring, so no locants or additional prefixes are needed. The 'Ph 110.' notation refers to the problem number in the M.S. Chauhan question bank, not a phenyl group in this context. Therefore, the correct answer is cyclohexane carbonitrile.