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EEJ MAIN Chemistry QUESTION #7132
Question 1
Which of the following conditions is most suitable for the conversion of hexane into benzene?
  • $Sn / HCl$
  • $V_{2}O_{5}$ at $500^{\circ}C$✔️
  • $LiAlH_{4}$
  • $Zn-Hg / HCl$
Correct Answer Explanation
The conversion of alkanes (like n-hexane) into aromatic hydrocarbons (benzene) is known as aromatization or catalytic reforming. This is achieved by heating the alkane to high temperatures (approx $500^{\circ}C$) in the presence of oxides of vanadium ($V_2O_5$), chromium, or molybdenum supported over alumina.