Among the structures given below which one represents nitrolic acid?

Options

A. `R_2-N-N=O`
B. `R-overset(NO_2)overset(|)C=NOH`
C.
D. `R_2C=NOH`

Answer

To determine which structure represents nitrolic acid, we can follow these steps:

### Step 1: Understand the General Formula
Nitrolic acids have a general formula of R-C(=NOH)-NO2. This means that the structure will contain:
- A carbon (C) connected to a hydroxylamine group (NOH).
- A nitro group (NO2) attached to the same carbon.

### Step 2: Identify Key Features
From the general formula:
- The carbon must have a double bond with the nitrogen of the hydroxylamine (C=NOH).
- The nitro group (NO2) must be directly attached to the same carbon.

### Step 3: Analyze the Given Structures
Look at each of the provided structures and check for:
- A carbon atom that has a double bond with a nitrogen atom (C=NOH).
- A nitro group (NO2) attached to that same carbon.

### Step 4: Compare with the General Structure
Once you identify a structure that matches the general formula:
- Ensure that it has the correct connectivity and functional groups as described.
- Confirm that the structure has the characteristic features of nitrolic acid.

### Step 5: Select the Correct Option
After analyzing all the structures, select the one that matches the criteria for nitrolic acid.

### Conclusion
The correct option representing nitrolic acid is the one that has the structure R-C(=NOH)-NO2.

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