Which of these is an incorrect statement?

Options

A. ` Tl^(3+)`salts are good oxidizing agents
B. `Ga ^+`salts are good reducing agents
C. `Pb^(4+)` salts are good oxidizing agents
D. `As^(5+)` salts are good oxidizing agents

Answer

To determine which of the statements is incorrect, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Analyze Option A: Ti³⁺ salts are good oxidizing agents.**
- **Explanation:** Ti³⁺ can gain electrons to become Ti²⁺. Since Ti²⁺ is more stable than Ti³⁺, Ti³⁺ is indeed a good oxidizing agent.
- **Conclusion:** This statement is **correct**.

2. **Analyze Option B: Ga⁺ salts are good reducing agents.**
- **Explanation:** Ga⁺ can lose electrons to become Ga³⁺. Since Ga³⁺ is more stable than Ga⁺, Ga⁺ acts as a reducing agent, not an oxidizing agent.
- **Conclusion:** This statement is **correct**.

3. **Analyze Option C: Pb⁴⁺ salts are good oxidizing agents.**
- **Explanation:** Pb⁴⁺ can gain electrons to become Pb²⁺. Since Pb²⁺ is more stable than Pb⁴⁺, Pb⁴⁺ is a good oxidizing agent.
- **Conclusion:** This statement is **correct**.

4. **Analyze Option D: As⁵⁺ salts are good oxidizing agents.**
- **Explanation:** As⁵⁺ can gain electrons to become As³⁺. However, As³⁺ is less stable than As⁵⁺, indicating that As⁵⁺ is not a good oxidizing agent.
- **Conclusion:** This statement is **incorrect**.

### Final Conclusion:
The incorrect statement is **Option D: As⁵⁺ salts are good oxidizing agents**.

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