Chemistry · PYQ NEET UG 2021
हिन्दीThe intermediate compound ‘X’ in the following chemical reaction is _______. \( \text{CH}_3 + \text{CrO}_2\text{Cl}_2 \xrightarrow{\text{CS}_2} \text{X} \xrightarrow{\text{H}_3\text{O}^+} \text{CHO} \)
Correct answer · Option 4
\( \text{CH}(\text{OCrOHCl}_2)_2 \)
Explanation
This is Etard reaction where toluene is oxidized by chromyl chloride (\text{CrO}_2\text{Cl}_2) to form a chromium complex intermediate (chromadichloride complex) which on hydrolysis yields benzaldehyde. The correct intermediate structure is option (4).