The alkyl halide is converted into an alcohol by

Options

A. elimination
B. dehydrohalgenation
C. addition
D. substitution

Answer

To convert an alkyl halide into an alcohol, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Alkyl Halide**: Start with the alkyl halide, which is a compound containing a carbon chain (alkyl group) and a halogen atom (like Cl, Br, or I).

2. **Choose the Right Reagent**: To convert the alkyl halide into an alcohol, we need to use a reagent that can provide a hydroxyl group (OH). A common choice is aqueous KOH (potassium hydroxide).

3. **Nucleophilic Substitution Reaction**: In the presence of aqueous KOH, the hydroxide ion (OH-) acts as a nucleophile. It will attack the carbon atom that is bonded to the halogen atom.

4. **Leaving Group**: The halogen (Cl, Br, or I) acts as a leaving group. When the nucleophile (OH-) attacks the carbon, the bond between the carbon and the halogen breaks, allowing the halogen to leave.

5. **Formation of Alcohol**: As a result of this nucleophilic substitution, the alkyl halide is converted into an alcohol. The final product will be an alcohol with the hydroxyl group replacing the halogen atom.

### Final Answer:
The alkyl halide is converted into an alcohol by **substitution** (specifically, nucleophilic substitution).