Toluene reacts with chromyl chloride to form :

Options

A. Benzoic acid
B. Benzene
C. Benzaldehyde
D. Benzophenone.

Explanation

To solve the question of what product is formed when toluene reacts with chromyl chloride, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactant in this case is toluene (C7H8), which consists of a benzene ring with a methyl group (–CH3) attached to it.

2. **Understand the Reaction**:
- Toluene reacts with chromyl chloride (CrO2Cl2), which is a strong oxidizing agent. This reaction typically leads to the oxidation of the methyl group in toluene.

3. **Formation of a Brown Chromium Complex**:
- When toluene reacts with chromyl chloride, it forms a brown chromium complex. This complex is an intermediate in the reaction and contains the chromium in a complex with the organic substrate.

4. **Hydrolysis of the Complex**:
- The brown chromium complex undergoes hydrolysis, typically in an acidic solution. Hydrolysis involves the addition of water, which leads to the breakdown of the complex.

5. **Final Product Formation**:
- After hydrolysis, the final product formed is benzaldehyde (C7H6O). Benzaldehyde has a benzene ring with a formyl group (–CHO) attached to it.

6. **Conclusion**:
- Therefore, the reaction of toluene with chromyl chloride results in the formation of benzaldehyde.

### Final Answer:
The product formed when toluene reacts with chromyl chloride is **benzaldehyde**.

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