Hydrolysis of phenyl isocyanide forms :

Options

A. Benzoic acid
B. Formic acid
C. Acetic acid
D. None of these

Explanation

To solve the question regarding the hydrolysis of phenyl isocyanide, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of Phenyl Isocyanide**:
- Phenyl isocyanide has the structure: C6H5-N≡C. It consists of a phenyl group (C6H5) attached to an isocyanide functional group (N≡C).

2. **Understand the Hydrolysis Process**:
- Hydrolysis involves the reaction of a compound with water. In this case, we will perform acid-catalyzed hydrolysis of phenyl isocyanide.

3. **Protonation of the Isocyanide**:
- In the presence of an acid (H+), the nitrogen in the isocyanide can be protonated, leading to the formation of a positively charged intermediate: C6H5-N+≡C.

4. **Nucleophilic Attack by Water**:
- Water acts as a nucleophile and attacks the carbon atom of the isocyanide group. This results in the opening of the triple bond and the formation of an intermediate: C6H5-N=C(OH)-H.

5. **Formation of Aniline and Formic Acid**:
- The next step involves rearrangement and further hydrolysis. The nitrogen atom can lose a proton, leading to the formation of aniline (C6H5-NH2) and carbonic acid (formic acid, HCOOH) as products.

6. **Final Products**:
- The final products of the hydrolysis of phenyl isocyanide are aniline (C6H5-NH2) and formic acid (HCOOH).

### Conclusion:
The hydrolysis of phenyl isocyanide forms two products: **aniline and formic acid**.