Which from following compounds is obtained when toluene is treated with $\mathrm{CrO}_2 \mathrm{Cl}_2$ in…
Which from following compounds is obtained when toluene is treated with $\mathrm{CrO}_2 \mathrm{Cl}_2$ in presence of $\mathrm{CS}_2$ followed by acid hydrolysis?
Chlorobenzene
Benzal chloride
Benzaldehyde
Benzoic acid
Solution
This is Etard reaction and the product formed is benzaldehyde.