Question:
Which alkanes undergo aromatization?
Which alkanes undergo aromatization?
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Straight-chain alkanes aromatize more easily than highly branched ones.
Updated On: Jun 17, 2026
- I & II only
- I & III only
- II & III only
- III & IV only
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Aromatization requires formation of benzene or substituted benzene via cyclization and dehydrogenation.
Step 2: n-Hexane → benzene (classic aromatization) → correct.
Step 3: Isopentane can rearrange under catalytic conditions to form aromatic derivatives → accepted in exam context → correct.
Step 4: n-Heptane gives toluene → aromatic → correct in some catalytic reforming conditions but typically less favored in basic pattern.
Step 5: Neohexane is highly branched and does not readily undergo aromatization → incorrect.
Step 6: Hence I and II are correct.
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