Assertion `:-` Benzaldehyde forms two oximes on reaction with `NH_(2)OH`.
Reason`:-` The two oximes arises due to geometrical isomerism around `C-N` bond.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are False

Answer

To solve the given question, we need to analyze the assertion and reason provided:

**Assertion:** Benzaldehyde forms two oximes on reaction with NH2OH.
**Reason:** The two oximes arise due to geometrical isomerism around the C-N bond.

### Step-by-Step Solution:

1. **Understanding the Reaction:**
- Benzaldehyde (C6H5CHO) reacts with hydroxylamine (NH2OH) to form an oxime. The reaction involves the nucleophilic attack of the nitrogen atom of hydroxylamine on the carbonyl carbon of benzaldehyde, followed by the elimination of water (H2O).

2. **Formation of Oxime:**
- The reaction can be represented as:
\[ \text{C}_6\text{H}_5\text{CHO} + \text{NH}_2\text{OH} \rightarrow \text{C}_6\text{H}_5\text{C}(=N\text{OH}) + \text{H}_2\text{O} \]
- The product formed is benzaldoxime (C6H5C=NOH).

3. **Geometrical Isomerism:**
- The oxime has a C=N double bond, which can exhibit geometrical isomerism due to restricted rotation around this double bond.
- The two possible configurations are:
- **E-isomer**: where the higher priority groups (C6H5 and OH) are on opposite sides.
- **Z-isomer**: where the higher priority groups are on the same side.

4. **Conclusion:**
- Since benzaldehyde can form two distinct oximes (E and Z) due to geometrical isomerism around the C=N bond, both the assertion and reason are correct.

### Final Answer:
Both the assertion and reason are correct, and the reason correctly explains the assertion.