See image — Hydrocarbons Chemistry Question

💡 Solution & Explanation

Correct option: \(\text{C}\). Classify the hydrocarbon by carbon framework and bond type: saturated alkanes, unsaturated alkenes/alkynes, or aromatic hydrocarbons. The selected option follows from that classification. Recovered question text: 18. Which of the following does not have allylic hydrogen: (1) CH —CH=CH 3 2 (2) CH —CH —CH=CH 3 2 2 (3) (4) CH —CH=CH—CH 3 3