The products of the reaction will be
`C_6H_6+CH_3-CH_2-CH_2-Broverset("Anhy.AlBr"_3)rarr`

Options

A. `C_6H_5-CH_2-CH_2-CH_3`
B.
C. as major product and `C_6H_5-CH_2-CH_2-CH_3` as minor product.
D. 1 : 1 mixture of `C_6H_5-CH_2-CH_2-CH_3` and

Answer

To solve the given problem, we will analyze the reaction between benzene and n-propyl bromide in the presence of anhydrous aluminum bromide (AlBr₃). This reaction is a Friedel-Crafts alkylation, which involves the formation of a carbocation that can react with benzene.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants are benzene (C₆H₆) and n-propyl bromide (C₃H₇Br).

2. **Understand the Role of Aluminum Bromide**:
- Anhydrous aluminum bromide (AlBr₃) acts as a Lewis acid and helps in generating a more reactive species from n-propyl bromide.

3. **Formation of Carbocation**:
- When n-propyl bromide reacts with AlBr₃, it forms a carbocation. The reaction can be represented as:
\[ \text{C}_3\text{H}_7\text{Br} + \text{AlBr}_3 \rightarrow \text{C}_3\text{H}_7^+ + \text{AlBr}_4^- \]
- The n-propyl carbocation (C₃H₇⁺) is a primary carbocation.

4. **Carbocation Rearrangement**:
- Primary carbocations can rearrange to form more stable secondary carbocations. In this case, the n-propyl carbocation can undergo a hydride shift to become a more stable isopropyl carbocation:
\[ \text{C}_3\text{H}_7^+ \rightarrow \text{C}_3\text{H}_7^+ \text{ (isopropyl)} \]

5. **Electrophilic Attack on Benzene**:
- The more stable isopropyl carbocation can then react with benzene. The electrophilic aromatic substitution occurs, leading to the formation of isopropylbenzene (also known as cumene):
\[ \text{C}_6\text{H}_6 + \text{C}_3\text{H}_7^+ \rightarrow \text{C}_6\text{H}_5\text{C}(CH_3)_2 \]

6. **Minor Product Formation**:
- Although the major product is isopropylbenzene, some n-propylbenzene will also be formed from the original n-propyl carbocation without rearrangement:
\[ \text{C}_6\text{H}_6 + \text{C}_3\text{H}_7^+ \rightarrow \text{C}_6\text{H}_5\text{C}_3\text{H}_7 \]

7. **Final Products**:
- The final products of the reaction are:
- Major Product: Isopropylbenzene (C₆H₅C(CH₃)₂)
- Minor Product: n-Propylbenzene (C₆H₅C₃H₇)

### Conclusion:
The products of the reaction are isopropylbenzene (major product) and n-propylbenzene (minor product).