Correct representation of 3-methylpent-3-en-2-ol is

Options

A.
B.
C.
D.

Answer

To solve the question regarding the correct representation of 3-methylpent-3-en-2-ol, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Main Chain**:
- The name "pent" indicates that the main carbon chain consists of 5 carbon atoms.
- Therefore, we will draw a straight chain of 5 carbon atoms.

2. **Number the Carbon Atoms**:
- Start numbering the carbon atoms from one end of the chain.
- Let's number them as follows:
- C1, C2, C3, C4, C5.

3. **Locate the Functional Groups**:
- The suffix "ol" indicates the presence of a hydroxyl group (-OH), which is an alcohol.
- The "3-en" part indicates that there is a double bond at the 3rd carbon.
- The "3-methyl" indicates that there is a methyl group (-CH3) attached to the 3rd carbon.

4. **Draw the Structure**:
- Start with the main chain of 5 carbons (C1 to C5).
- Place the double bond between C3 and C4.
- Attach the hydroxyl group (-OH) to C2.
- Add the methyl group (-CH3) to C3.

5. **Complete the Structure**:
- Ensure that all carbon atoms have four bonds.
- C1 will have 3 hydrogens (H), C2 will have 1 hydrogen and the -OH group, C3 will have the double bond, 1 hydrogen, and the -CH3 group, C4 will have 2 hydrogens, and C5 will have 3 hydrogens.

6. **Final Structure**:
- The final structure can be represented as follows:
```
CH3
|
H3C-C=C-CH-CH3
|
OH
```