See image — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Step 1 - Identify functional groups in the Cortisone structure shown: 1. ALCOHOL: The HOH2C- group attached to the side chain at C17 is a primary alcohol (-CH2OH). This gives the 'alcohol' functional group. 2. KETONE: There are two C=O groups visible in the structure. One is at the bottom left of ring A (conjugated with the double bond, forming an enone), and one is at the C11 position (ring B/C junction area). Both are ketones (carbonyl flanked by carbons). This gives the 'ketone' functional group. 3. ALKENE: The C=C double bond in ring A (conjugated with the ketone, forming an alpha,beta-unsaturated system) is an alkene. This gives the 'alkene' functional group. 4. ETHER: The -OCH3 group on the side chain at C17 is a methoxy ether (C-O-C linkage). This gives the 'ether' functional group. Step 2 - Match to options: - Option (a): ether, alkene, alcohol — missing ketone, incorrect. - Option (b): alcohol, ketone, alkene, ether — includes all four identified functional groups: alcohol (HOH2C-), ketone (two C=O groups), alkene (C=C in ring A), ether (-OCH3). This matches completely. - Option (c): alcohol, ketone, amine — no amine present; missing alkene and ether, incorrect. - Option (d): ether, amine, ketone — no amine present; missing alcohol and alkene, incorrect. Step 3 - Conclusion: All four functional groups — alcohol, ketone, alkene, and ether — are present in the given structure of Cortisone, matching option (b). Therefore, the correct answer is B.