This section contains Assertion and Reason type questions .Each question has 4 choices (1)(2)(3) and (4) out of which only one is correct
Assertion(A): `KMnO_4` acts as a strong oxidising agent
Reason:it helps in the reduction of another substance

Answer

To solve the assertion and reason question regarding KMnO4, we will analyze both the assertion and the reason step by step.

### Step 1: Understand the Assertion
**Assertion (A):** KMnO4 acts as a strong oxidizing agent.

- **Explanation:** An oxidizing agent is a substance that gains electrons in a chemical reaction, thereby causing another substance to be oxidized. KMnO4 (potassium permanganate) is known for its strong oxidizing properties, especially in acidic conditions. It can oxidize a variety of substances, which confirms that the assertion is true.

### Step 2: Understand the Reason
**Reason (R):** It helps in the reduction of another substance.

- **Explanation:** The reason states that KMnO4 helps in the reduction of another substance. In redox reactions, when one substance is oxidized, another is reduced. KMnO4, by acting as an oxidizing agent, facilitates the oxidation of other substances, which means it is indeed involved in the reduction process of the other species. Therefore, the reason is also true.

### Step 3: Determine the Relationship
- Both the assertion and the reason are true.
- The reason correctly explains the assertion because KMnO4, as an oxidizing agent, causes the reduction of other substances.

### Conclusion
Based on the analysis:
- **Assertion (A)** is true.
- **Reason (R)** is true and it explains the assertion.

Thus, the correct choice would be that both the assertion and reason are true, and the reason is a correct explanation of the assertion.

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