Trivial name of `C_6H_5NH_2` IS

Options

A. CYCLOHEXYLAMINE
B. Phenylamine
C. Benzylamine
D. Aniline

Answer

To determine the trivial name of the compound with the molecular formula \( C_6H_5NH_2 \), we can follow these steps:

### Step 1: Identify the structure of the compound
The molecular formula \( C_6H_5NH_2 \) indicates that the compound consists of a benzene ring (which has the formula \( C_6H_5 \)) attached to an amino group (\( NH_2 \)).

### Step 2: Draw the structure
The structure can be represented as follows:
- A benzene ring (hexagonal shape with alternating double bonds)
- An amino group (\( NH_2 \)) attached to one of the carbon atoms of the benzene ring.

### Step 3: Recognize the common naming conventions
In organic chemistry, compounds that contain an amino group attached to a benzene ring are commonly referred to as "anilines." The trivial name for this specific structure is "aniline."

### Step 4: Verify the options
The options given are:
1. Cyclohexylamine
2. Phenylamine
3. Benzylamine
4. Aniline

Among these options, "aniline" is the correct trivial name for \( C_6H_5NH_2 \).

### Conclusion
Therefore, the trivial name of \( C_6H_5NH_2 \) is **aniline**.

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