Which of the following is boiled with ethyl chloride for the preparation of ethyl alcohol?

Options

A. Alc.KOH
B. Aq.KOH
C. Conc.`H_(2)SO_(4)`
D. `H_(2)O_(2)`

Answer

To determine which reagent is boiled with ethyl chloride (C2H5Cl) for the preparation of ethyl alcohol (C2H5OH), we can follow these steps:

### Step 1: Identify the Reaction
We need to convert ethyl chloride (C2H5Cl) into ethyl alcohol (C2H5OH). This involves replacing the chlorine atom (Cl) in ethyl chloride with a hydroxyl group (OH).

### Step 2: Understand the Reagents
We have several options for reagents:
1. Alcoholic KOH
2. Aqueous KOH
3. H2SO4
4. H2O2

### Step 3: Analyze Each Reagent
- **Alcoholic KOH**: This reagent is typically used for elimination reactions, leading to the formation of alkenes rather than alcohols. Therefore, it will not be suitable for our purpose.

- **Aqueous KOH**: This reagent contains hydroxide ions (OH⁻), which can act as a nucleophile. The hydroxide ion can attack the carbon atom in ethyl chloride, leading to the substitution of Cl with OH, thus forming ethyl alcohol.

- **H2SO4**: This is a strong acid and does not provide the necessary nucleophile (OH⁻) for the substitution reaction. It is not suitable for preparing alcohols from alkyl halides.

- **H2O2**: This is not a nucleophile and does not participate in the substitution reaction required to form alcohols.

### Step 4: Conclusion
The only suitable reagent for the preparation of ethyl alcohol from ethyl chloride is **Aqueous KOH**, as it provides the necessary hydroxide ion (OH⁻) for the nucleophilic substitution reaction.

### Final Answer
**Aqueous KOH** is boiled with ethyl chloride for the preparation of ethyl alcohol.

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