The species which acts as electrophile in the bromination of
benzene is `:`

Options

A. `Br_(2)`
B. `Br^(-)`
C. `Br^(+)`
D. `Br^(**)`

Explanation

To determine the species that acts as an electrophile in the bromination of benzene, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Electrophiles and Nucleophiles**:
- Electrophiles are species that accept electrons, while nucleophiles are species that donate electrons. In the context of benzene bromination, we need to identify which species will act as the electrophile.

2. **Identifying the Reagents**:
- The main reagents in the bromination of benzene are bromine (Br₂) and a catalyst, typically iron(III) bromide (FeBr₃). The reaction can be summarized as:
\[ \text{Br}_2 + \text{FeBr}_3 \rightarrow \text{Br}^+ + \text{FeBr}_4^- \]

3. **Formation of the Electrophile**:
- When bromine (Br₂) reacts with the catalyst (FeBr₃), it generates a bromonium ion (Br⁺) as the electrophile. This can be represented as:
\[ \text{Br}_2 \rightarrow \text{Br}^+ + \text{Br}^- \text{ (with FeBr}_3\text{)} \]
- Here, Br⁺ is the electrophile that will attack the benzene ring.

4. **Reaction with Benzene**:
- The electrophile (Br⁺) then attacks the electron-rich benzene ring, leading to the formation of a bromobenzene product. The reaction proceeds through the formation of a carbocation intermediate.

5. **Final Product Formation**:
- After the electrophilic attack, a proton is removed from the carbocation intermediate, resulting in the formation of bromobenzene (C₆H₅Br) and regenerating the catalyst (FeBr₄⁻).

### Conclusion:
The species that acts as the electrophile in the bromination of benzene is **Br⁺** (bromonium ion).

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