Complete the following :
`CH_(3)-CH_(2)-O-C_(6)H_(5)+HI("Conc.")rarr`

Explanation

To solve the given reaction of ethyl phenyl ether with concentrated HI, we will follow these steps:

### Step 1: Identify the Reactants
The reactant is ethyl phenyl ether, which can be represented as:
\[ \text{CH}_3\text{CH}_2\text{-O-C}_6\text{H}_5 \]

### Step 2: Understand the Reaction Mechanism
When concentrated HI reacts with ethers, it typically involves the cleavage of the ether bond. The oxygen atom in the ether has lone pairs that can participate in resonance with adjacent groups. In this case, the oxygen is bonded to a phenyl group (C6H5) and an ethyl group (C2H5).
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