The compound X in the reaction X + Zn `" " rarr ` 3 -Hexene, is

Options

A. 3, 4-Dichlorohexane
B. 1, 1-Dichloropropane
C. Both (1) and (2)
D. None of the above

Answer

To determine the compound X in the reaction \( X + Zn \rightarrow 3 \text{-Hexene} \), we can analyze the structure of 3-Hexene and the possible reactants that could yield this product when reacted with zinc.

### Step 1: Identify the structure of 3-Hexene
3-Hexene is an alkene with the following structure:
- It has a total of 6 carbon atoms (hex).
- The double bond is located between the 3rd and 4th carbon atoms.

The structure can be represented as:
\[ \text{CH}_3 - \text{CH}_2 - \text{C} = \text{C} - \text{CH}_2 - \text{CH}_3 \]

### Step 2: Analyze the possible reactants
To form 3-Hexene through a reaction with zinc, we need to consider compounds that can undergo dehydrohalogenation (removal of hydrogen halide) in the presence of zinc.

### Step 3: Consider the reactants
1. **3,4-Dichlorohexane**:
- Structure:
\[ \text{CH}_3 - \text{CH}_2 - \text{C}(\text{Cl}) - \text{C}(\text{Cl}) - \text{CH}_2 - \text{CH}_3 \]
- When reacted with zinc, the zinc will remove the two chlorine atoms, leading to the formation of a double bond between the 3rd and 4th carbon atoms, resulting in 3-Hexene.

2. **1,1-Dichloropropane**:
- Structure:
\[ \text{CH}_3 - \text{CH}_2 - \text{C}(\text{Cl}) - \text{C}(\text{Cl}) - \text{CH}_2 - \text{CH}_3 \]
- This compound can also react with zinc to form 3-Hexene by removing the chlorine atoms and forming a double bond.

### Step 4: Conclusion
Both 3,4-Dichlorohexane and 1,1-Dichloropropane can react with zinc to form 3-Hexene. Therefore, the compound X in the reaction can be either of these two compounds.

### Final Answer:
The compound X in the reaction \( X + Zn \rightarrow 3 \text{-Hexene} \) is **3,4-Dichlorohexane or 1,1-Dichloropropane**.

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