`CH_(3)-CH=CH_(2)+NoCl to (A)`
Which of the following is the structure of compound A?

Options

A. `CH_(3)CHNO-CH_(2)Cl`
B. `ON-CH_(2)-CH_(2)-CH_(2)Cl`
C. `CH_(3)-CHCI-CH_(2)NO`
D. `CH_(2)CI_CHNO-CH_(2)CH_(3)`

Explanation

To determine the structure of compound A formed from the reaction of propene (CH₃-CH=CH₂) with NOCl, we can follow these steps:

### Step 1: Identify the Reactants
We start with propene, which has the structure CH₃-CH=CH₂. The other reactant is NOCl.

### Step 2: Understand the Reaction Mechanism
In this reaction, the double bond in propene will react with the electrophilic species NOCl. The nitrogen in NOCl is positively polarized due to the electronegativity of chlorine, making it an electrophile.

### Step 3: Formation of Carbocation
When the double bond attacks the NO part of NOCl, it can lead to the formation of a carbocation. The double bond can break, leading to two possible carbocations:
1. A secondary carbocation (more stable) at the second carbon (C2).
2. A primary carbocation at the first carbon (C1).

The more stable secondary carbocation will be favored.

### Step 4: Attack of Chloride Ion
Once the more stable carbocation is formed, the chloride ion (Cl⁻) from NOCl will attack this carbocation.

### Step 5: Structure of Compound A
After the attack of Cl⁻ on the carbocation, we will have the following structure:
- The carbon chain remains the same with the addition of Cl and NO groups.
- The final structure will be CH₃-CHCl-CH₂-NO.

### Step 6: Conclusion
Thus, the structure of compound A is CH₃-CHCl-CH₂-NO.

### Final Answer
The structure of compound A is CH₃-CHCl-CH₂-NO.

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