Direction this section contains Assertion and Reason type question each question has 4 choice (1)(2)(3)(4) out of only which one is correct
(1) Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion (2)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion (3)Assertion is correct but Reason is incorrect (4) Both Assertion and Reason are incorrect
Assertion(A): In the reactions between potassium permanganate and potassium iodide permanganate ions acts as oxidising agent
Reason(R):Oxidation state of manganese changes from +2 to +7 during the reaction

Options

A. Both assertion and reason are correct and reason is the correct explanation of the assertion
B. Both assertion and reason are correct but reason is not the correct explantion
C. Assertion is correct but reason is incorrect
D. Both assertion and reason are incorrect

Answer

To solve the Assertion and Reason type question, we will analyze both the Assertion (A) and Reason (R) provided.

**Assertion (A):** In the reactions between potassium permanganate and potassium iodide, permanganate ions act as an oxidizing agent.

**Reason (R):** Oxidation state of manganese changes from +2 to +7 during the reaction.

### Step-by-Step Solution:

1. **Understanding the Reaction:**
- Potassium permanganate (KMnO₄) reacts with potassium iodide (KI).
- In this reaction, the permanganate ion (MnO₄⁻) is known to act as an oxidizing agent.

2. **Identifying the Oxidation States:**
- In KMnO₄, manganese (Mn) has an oxidation state of +7.
- During the reaction, the manganese is reduced, and its oxidation state changes.

3. **Analyzing the Change in Oxidation State:**
- The oxidation state of manganese changes from +7 in KMnO₄ to +2 in Mn²⁺ after the reaction.
- The statement in Reason (R) claims that the oxidation state changes from +2 to +7, which is incorrect.

4. **Conclusion:**
- The Assertion (A) is correct because permanganate ions do act as an oxidizing agent.
- The Reason (R) is incorrect because the oxidation state of manganese changes from +7 to +2, not from +2 to +7.

5. **Final Answer:**
- Therefore, the correct choice is (3): Assertion is correct but Reason is incorrect.