4-Nitro-N,N-dimethyl benzenamine is

Options

A.
B.
C.
D.

Answer

To determine the structure of 4-Nitro-N,N-dimethylbenzenamine, we will follow these steps:

### Step 1: Understand the Components of the Name
The name "4-Nitro-N,N-dimethylbenzenamine" indicates that we have a benzene ring with specific substituents:
- "benzenamine" indicates that there is an amine group (NH2) attached to the benzene ring.
- "N,N-dimethyl" means that the amine group is substituted with two methyl groups (CH3) on the nitrogen atom.
- "4-Nitro" indicates that there is a nitro group (NO2) attached to the benzene ring at the 4th position.

### Step 2: Draw the Benzene Ring
Start by drawing a benzene ring, which consists of six carbon atoms arranged in a hexagonal shape with alternating double bonds.

### Step 3: Add the Amine Group
Next, we need to add the amine group (NH2) to one of the carbon atoms on the benzene ring. For this compound, we will place it at the first carbon (C1) of the benzene ring.

### Step 4: Substitute the Amine with Dimethyl Groups
Since the amine group is N,N-dimethyl, we replace the hydrogen atoms of the NH2 group with two methyl groups (CH3). This means the nitrogen will now be bonded to two CH3 groups and one hydrogen atom.

### Step 5: Identify the Position of the Nitro Group
The name specifies that the nitro group (NO2) is at the 4th position. Counting from the carbon with the amine group (C1), the nitro group will be attached to the carbon that is fourth in the sequence.

### Step 6: Finalize the Structure
Now, we can finalize the structure:
- The benzene ring has the amine group at C1.
- The nitrogen of the amine is bonded to two methyl groups.
- The nitro group is attached to C4.

### Final Structure
The final structure of 4-Nitro-N,N-dimethylbenzenamine can be represented as follows:

```
CH3
|
CH3-N
|
C1
/ \
C2 C4 (NO2)
/ \
C3 C5
\ /
C6
```

### Conclusion
The correct structure of 4-Nitro-N,N-dimethylbenzenamine is confirmed, and we can now select the correct option from the given choices.

---