IUAPC name of allyl chloride is

Options

A. 1-chloro propene
B. 2-chloro propene
C. 3-chloro propene
D. 3-chloropropane

Answer

To determine the IUPAC name of allyl chloride, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of Allyl Chloride**:
- Allyl chloride has the molecular structure where a chlorine atom is attached to the allyl group (C3H5). The allyl group is characterized by the structure: CH2=CH-CH2-.

2. **Draw the Molecular Structure**:
- The structure can be represented as follows:
```
CH2
|
CH
|
CH2Cl
```
- In this structure, the chlorine atom is attached to the terminal carbon of the allyl group.

3. **Number the Carbon Atoms**:
- Number the carbon atoms starting from the end closest to the functional group (in this case, the chlorine atom).
- The numbering would be:
- Carbon 1: CH2 (attached to Cl)
- Carbon 2: CH
- Carbon 3: CH2

4. **Determine the IUPAC Name**:
- The compound is a propene derivative because it contains three carbon atoms and a double bond.
- The chlorine is attached to the third carbon, thus the IUPAC name is **3-chloroprop-1-ene**.

5. **Final Answer**:
- Therefore, the IUPAC name of allyl chloride is **3-chloroprop-1-ene**.