Which of the following reagents is used to convert phenol to benzene?

Which of the following reagents is used to convert phenol to benzene?
  1. Zn (dust)
  2. Na
  3. KMnO $_{4}$ (acidified)
  4. LiAlH $_{4}$

Solution

When phenol is heated with zinc dust, benzene is obtained. \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{OH}+\mathrm{Zn} \stackrel{\Delta}{\longrightarrow} \mathrm{C}_{6} \mathrm{H}_{6}+\mathrm{ZnO}\)

Asked in: MHT CET 2020 (20 Oct Shift 1)

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