The reaction:
`CH_(3)CH_(2)I + KOH(aq)toCH_(3)CH_(2)OH+KI`
is classified as :
(a) electrophilic substitution (b) nucleophilic substitution
(c) elimination (d) addition

Explanation

To classify the reaction `CH3CH2I + KOH(aq) → CH3CH2OH + KI`, we can follow these steps:

### Step 1: Identify the Reactants and Products
- The reactants are `CH3CH2I` (ethyl iodide) and `KOH` (potassium hydroxide).
- The products are `CH3CH2OH` (ethanol) and `KI` (potassium iodide).

### Step 2: Analyze the Reaction Mechanism
- In this reaction, the hydroxide ion (OH⁻) from KOH acts as a nucleophile.
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