Benzaldeyde can be prepared by oxidation of toluene by

Options

A. Acidi `KMnO_(4) `
B. `CrO_(3)//(CH_(3)CO)_(2)O, 573K `
C. `CrO_(2)Cl_(2)`
D. All of these

Explanation

To prepare benzaldehyde from toluene, we can utilize the oxidation process. Here’s a step-by-step breakdown of the reaction:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The starting material is toluene (C6H5CH3).
- The oxidizing agent can be chromyl chloride (CrO2Cl2).

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