Which of the following ether is called phenetole?

Options

A. `PhOCH_(3)`
B. `PhOC_(2)H_(5)`
C. `PhOC_(3)H_(7)`
D. `p-NO_(2)-C_(6)H_(4)OC_(2)H_(5)`

Explanation

To determine which ether is called phenetole, we can follow these steps:

### Step 1: Understand the Structure of Phenetole
Phenetole is an ether that consists of a phenyl group (derived from benzene) and an ethyl group attached through an oxygen atom. The general structure can be represented as:

- A benzene ring (C6H5)
- An ethyl group (C2H5)
- An oxygen atom connecting the two groups

### Step 2: Draw the Structural Formula
The structural formula for phenetole can be drawn as follows:

```
C6H5
|
O
|
CH2
|
CH3
```

This shows the phenyl group (C6H5) bonded to an oxygen atom, which is then bonded to the ethyl group (C2H5).

### Step 3: Identify the IUPAC Name
The IUPAC name for phenetole is ethoxybenzene. However, it is commonly known as phenetole. This is important to note as it helps in understanding the naming conventions of ethers.

### Step 4: Compare with Given Options
Now, we need to compare the structure of phenetole with the options provided in the question. We will check each option to identify which one corresponds to the structure we have drawn.

- **Option A**: Incorrect
- **Option B**: Correct (C6H5OCH2CH3)
- **Option C**: Incorrect
- **Option D**: Incorrect

### Conclusion
After comparing the structures, we conclude that the ether called phenetole corresponds to **Option B**.

### Final Answer
The ether called phenetole is **Option B** (C6H5OCH2CH3).

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