General formula of primary alcohol is

Options

A.
B.
C. `-CH_(2)OH`
D.

Explanation

To determine the general formula of primary alcohols, we can follow these steps:

### Step 1: Understand the Structure of Alcohols
Alcohols are organic compounds that contain one or more hydroxyl (-OH) functional groups. The general formula for alcohols can be represented as CnH2n+1OH, where 'n' is the number of carbon atoms.

### Step 2: Define Primary Alcohols
A primary alcohol is one in which the hydroxyl group (-OH) is attached to a carbon atom that is connected to only one other carbon atom. This means that the carbon with the -OH group is at the end of a carbon chain.

### Step 3: Write the General Formula for Primary Alcohols
For primary alcohols, the general formula can be derived from the structure:
- If we consider a primary alcohol with 'n' carbon atoms, the carbon with the -OH group will be at the terminal position.
- The general formula can be expressed as CnH2n+1OH.

### Step 4: Examples of Primary Alcohols
- Methanol (1 carbon): CH3OH
- Ethanol (2 carbons): CH3CH2OH
- Propanol (3 carbons): CH3CH2CH2OH

### Step 5: Conclusion
Thus, the general formula for primary alcohols is CnH2n+1OH.