Assertion: Aryl iodides can be prepared by reaction of arenes with iodine in the presence of an oxidising agent.
Reason: Oxidising agent oxidises `I_(2)` into HI.

Options

A. Assertion and reason both are correct and reason is correct explanation of assertion
B. Assertion and reason both are wrong statements
C. Assertion is correct but reason is wrong statement
D. Assertion is wrong but reason is correct statement.

Explanation

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

### Step 1: Understanding the Assertion
The assertion states that "Aryl iodides can be prepared by the reaction of arenes with iodine in the presence of an oxidizing agent."

- This is true because aryl iodides can indeed be synthesized through the reaction of arenes (such as phenol) with iodine. In the presence of an oxidizing agent, the reaction facilitates the introduction of iodine into the aromatic ring, leading to the formation of aryl iodides.

### Step 2: Understanding the Reason
The reason provided states that "The oxidizing agent oxidizes `I_(2)` into HI."

- This statement is incorrect. In the context of the reaction, the oxidizing agent (like HNO3) does not oxidize iodine (`I2`) into HI. Instead, it oxidizes HI back into iodine (`I2`). The role of the oxidizing agent is to ensure that the reaction proceeds by removing the HI that is formed as a byproduct, thus preventing the reverse reaction.

### Step 3: Conclusion
Based on the analysis:
- The assertion is correct: Aryl iodides can be prepared from arenes and iodine in the presence of an oxidizing agent.
- The reason is incorrect: The oxidizing agent does not convert `I2` into HI; it actually converts HI back into `I2`.

Thus, the correct answer is that the assertion is true, but the reason is false.

### Final Answer:
Assertion is correct, but the reason is incorrect. Therefore, the correct option is C.

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