The following equation is an example of a redox reaction in which `Cl_(2)` is the oxidizing agent and `FeBr_(3)` is the reducing agent:
`2FeBr_(3)(aq)+3Cl_(2)(g) to 2FeCl_(3)(aq)+3Br_(2)(l)`
Which one among the following statement is incorrect for this redox reaction?

Options

A. oxidizing agents are themselves reduced
B. Reducing agents gains or appear to gain electrons
C. Reducing agents oxidized
D. oxidizing agents oxidize other substances

Explanation

To determine which statement is incorrect regarding the redox reaction given by the equation:

\[ 2FeBr_3(aq) + 3Cl_2(g) \rightarrow 2FeCl_3(aq) + 3Br_2(l) \]

where \( Cl_2 \) is the oxidizing agent and \( FeBr_3 \) is the reducing agent, we will analyze the roles of the oxidizing and reducing agents in a redox reaction.

### Step-by-Step Solution:

1. **Identify the Oxidizing and Reducing Agents:**
- In this reaction, \( Cl_2 \) acts as the oxidizing agent because it causes the oxidation of \( FeBr_3 \) by accepting electrons.
- \( FeBr_3 \) is the reducing agent as it donates electrons to \( Cl_2 \), leading to its own oxidation.

2. **Understand the Definitions:**
- An **oxidizing agent** is a substance that gains electrons (is reduced) while causing another substance to be oxidized.
- A **reducing agent** is a substance that loses electrons (is oxidized) while causing another substance to be reduced.

3. **Analyze Each Statement:**
- **Statement 1:** "Oxidizing agents are themselves reduced."
- This is correct because \( Cl_2 \) gains electrons.
- **Statement 2:** "Reducing agents gain or appear to gain electrons."
- This is incorrect because reducing agents lose electrons.
- **Statement 3:** "Reducing agents are oxidized."
- This is correct because \( FeBr_3 \) loses electrons and is oxidized.
- **Statement 4:** "Oxidizing agents oxidize other substances."
- This is correct because \( Cl_2 \) oxidizes \( FeBr_3 \).

4. **Conclusion:**
- The incorrect statement among the options provided is **Statement 2**, which claims that reducing agents gain or appear to gain electrons. This is false because reducing agents actually lose electrons.

### Final Answer:
The incorrect statement for this redox reaction is: "Reducing agents gain or appear to gain electrons."