1.

Which of the following reagent is the most suitable for converting benzyl alcohol into benzaldehydeA. `KMnO_(4),NaOH`B. `K_(2)Cr_(2)O_(7),H_(2)SO_(4)`C. `CrO_(3),CH_(3)COOH`D. `MnO_(2)`

Answer» Correct Answer - D
`MnO_(2)` selectively oxidizes the `OH` group of allylic and benzlic `1^(@)` and `2^(@)` alcohols to give aldehydes and ketones :
`C_(6)H_(5)CH_(2)OH overset(MnO_(2))rarr C_(6)H_(5)CHO`


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