Consider the following sequence of reaction. Identify the final product (Y) `CH_3CH_2CH_3overset(Cl_2//hv)rarr(X)overset(aq.OH^(-))rarr(Y)`

Options

A. propan -1 -ol
B. propan -2- ol
C. mixture of both propan -1-ol and propan - 2 - ol
D. ethanol

Answer

To solve the problem step by step, let's break down the reactions involved:

### Step 1: Identify the Initial Compound
The initial compound given is **propane**, which has the molecular formula **C₃H₈** or **CH₃CH₂CH₃**.

### Step 2: Chlorination of Propane
When propane is treated with chlorine (Cl₂) in the presence of light (hv), a free radical halogenation reaction occurs. This process involves the following:
- The chlorine molecule undergoes homolytic cleavage to form two chlorine radicals (Cl·).
- These radicals can abstract hydrogen atoms from propane, leading to the formation of alkyl radicals.

### Step 3: Formation of Products
In the case of propane, two types of radicals can be formed:
1. **Primary Radical**: CH₃CH₂CH₂· (from the abstraction of a hydrogen from the terminal carbon)
2. **Secondary Radical**: CH₃CH·CH₃ (from the abstraction of a hydrogen from the middle carbon)

The secondary radical is more stable due to hyperconjugation and will be the major product. This leads to the formation of **2-chloropropane (CH₃CHClCH₃)** as the major product and **1-chloropropane (CH₃CH₂CH₂Cl)** as the minor product.

### Step 4: Reaction with Aqueous OH⁻
Next, the product mixture (containing both 1-chloropropane and 2-chloropropane) is treated with aqueous hydroxide ions (OH⁻). This leads to a nucleophilic substitution reaction:
- The hydroxide ion can attack the carbon atom bonded to the chlorine atom, leading to the substitution of the chlorine atom with a hydroxyl group (OH).

### Step 5: Identify the Final Products
1. From **2-chloropropane**:
- The hydroxide ion replaces the chlorine, yielding **2-propanol (CH₃CHOHCH₃)**.

2. From **1-chloropropane**:
- The hydroxide ion replaces the chlorine, yielding **1-propanol (CH₃CH₂CH₂OH)**.

### Final Conclusion
The final products (Y) are a mixture of **1-propanol (C₃H₈O)** and **2-propanol (C₃H₈O)**.

### Answer
The final product (Y) is a mixture of **1-propanol and 2-propanol**.

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