Which one of the following displaces bromine form an aqueous solution of bromine ?

Options

A. `Cl_2`
B. `Cl^(-)`
C. `I_2`
D. `I_3^(-)`

Answer

To determine which substance can displace bromine from an aqueous solution of bromide, we need to consider the reactivity series of halogens. The reactivity series is a list that ranks halogens based on their ability to displace other halogens from their compounds.

### Step-by-Step Solution:

1. **Understand the Concept of Displacement Reactions**:
Displacement reactions occur when a more reactive element displaces a less reactive element from its compound. In this case, we are looking for a halogen that can displace bromine (Br) from an aqueous solution of bromide ions (Br⁻).

2. **Identify the Halogens**:
The common halogens include fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).

3. **Refer to the Reactivity Series of Halogens**:
The reactivity series for halogens is as follows:
- Fluorine (F₂) > Chlorine (Cl₂) > Bromine (Br₂) > Iodine (I₂)
This means that fluorine is the most reactive, followed by chlorine, bromine, and then iodine.

4. **Determine Which Halogen Can Displace Bromine**:
Since chlorine (Cl₂) is more reactive than bromine (Br₂), it can displace bromine from its aqueous solution. Therefore, if we have an aqueous solution of bromide ions and we introduce chlorine gas, bromine will be displaced.

5. **Conclusion**:
The halogen that can displace bromine from an aqueous solution of bromide is chlorine (Cl₂).

### Final Answer:
Chlorine (Cl₂) displaces bromine from an aqueous solution of bromide.

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