For `C_(6)H_(5)CHO` which of the following is incorrect ?

Options

A. On oxidation it yields benzoic acid
B. It is used in perfumery
C. It is an aromatic aldehyde
D. On reduction yields phenol

Answer

To determine which statement about `C6H5CHO` (benzaldehyde) is incorrect, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the compound**:
- The molecular formula `C6H5CHO` corresponds to benzaldehyde, which is an aromatic aldehyde.

2. **Analyze the oxidation reaction**:
- Benzaldehyde can be oxidized to benzoic acid. This is a common reaction for aldehydes when treated with strong oxidizing agents.
- **Conclusion**: This statement is correct.

3. **Check its use in perfumery**:
- Benzaldehyde is indeed used in the fragrance industry due to its pleasant almond-like scent.
- **Conclusion**: This statement is correct.

4. **Determine the classification**:
- Benzaldehyde is classified as an organic aromatic aldehyde because it contains an aromatic ring (the benzene ring).
- **Conclusion**: This statement is correct.

5. **Evaluate the reduction reaction**:
- When benzaldehyde undergoes reduction, it is converted to benzyl alcohol (C6H5CH2OH), not phenol (C6H5OH).
- **Conclusion**: This statement is incorrect.

### Final Answer:
The incorrect statement regarding `C6H5CHO` (benzaldehyde) is that on reduction it yields phenol. The correct product of the reduction is benzyl alcohol.