If phenyl magnesium bromide and acetaldehyde are the reactants,
the product formed after hydrolysis would be:

Options

A. benzyl alcohol
B. 1-Phenylethanol
C. 2-Phenylethanol
D. Acetone

Explanation

To solve the problem of determining the product formed after the hydrolysis of phenyl magnesium bromide and acetaldehyde, we can follow these steps:

### Step 1: Identify the Reactants
The reactants given are:
- Phenyl magnesium bromide (C6H5MgBr)
- Acetaldehyde (CH3CHO)

### Step 2: Understand the Reaction
Phenyl magnesium bromide is a Grignard reagent, which reacts with carbonyl compounds like acetaldehyde. The Grignard reagent acts as a nucleophile and attacks the electrophilic carbon atom of the carbonyl group in acetaldehyde.

### Step 3: Write the Reaction
The reaction can be represented as follows:
\[ C6H5MgBr + CH3CHO \rightarrow C6H5CH(OH)CH3 + MgBr(OH) \]
Here, the phenyl group (C6H5) from the Grignard reagent attacks the carbonyl carbon of acetaldehyde, leading to the formation of an intermediate alcohol.

### Step 4: Hydrolysis of the Intermediate
After the initial reaction, hydrolysis occurs. This means that the intermediate formed will react with water (or an aqueous solution) to yield the final alcohol product:
\[ C6H5CH(OH)CH3 \]

### Step 5: Identify the Product
The product formed after hydrolysis is 1-phenyl-ethanol. This compound has:
- A phenyl group (C6H5) attached to the first carbon.
- A hydroxyl group (OH) attached to the second carbon.

### Final Answer
The product formed after hydrolysis of phenyl magnesium bromide and acetaldehyde is **1-phenyl-ethanol**.

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