See image — Hydrocarbons Chemistry Question

💡 Solution & Explanation

Correct option: \(\text{B}\). 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: 20. The most volatile alkane is : (A) n-pentane (B) isopentane (C) neopentane (D) n-hexane