1.

Benzaldehyde can be prepared by oxidation of toluene by which of the following reagent?

A. Acidic KMnO<sub>4</sub>
B. K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>
C. CrO<sub>2</sub>Cl<sub>2</sub>
D. basic KMnO<sub>4</sub>
Answer» D. basic KMnO<sub>4</sub>


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