Assertion : It is not so easy to oxidise primary alcohols to aldehydic stage.
Reason : Aldehydes are prone to furthr oxidation to carbonxylic acids.

Options

A. If both assertion and reason are correct and reason is correct explanation for assertion.
B. If both assertion and reason are correct and reason is not correct explanation for assertion.
C. If assertion is correct but reason is incorrect.
D. If assertion as well as reason are both incorrect.

Explanation

To solve the question regarding the assertion and reason provided, we can break it down into a systematic approach:

### Step 1: Understand the Assertion
The assertion states: "It is not so easy to oxidize primary alcohols to the aldehydic stage."
- **Explanation**: Primary alcohols can be oxidized to aldehydes, but this process requires careful control of the reaction conditions. If the oxidation is too vigorous or prolonged, the aldehyde can be further oxidized to a carboxylic acid.

### Step 2: Understand the Reason
The reason states: "Aldehydes are prone to further oxidation to carboxylic acids."
- **Explanation**: Aldehydes are indeed more reactive than alcohols and can easily be oxidized to carboxylic acids if they are not removed from the reaction mixture. This is a well-known characteristic of aldehydes.

### Step 3: Analyze the Relationship between Assertion and Reason
- Both the assertion and the reason are correct. The assertion highlights the difficulty in oxidizing primary alcohols to aldehydes without further oxidation to carboxylic acids, and the reason explains why this is the case.

### Step 4: Conclusion
Based on the analysis, we can conclude that:
- Both the assertion and the reason are correct, and the reason provides a correct explanation for the assertion.

### Final Answer
The correct answer is option 4: "Both assertion and reason are correct, and the reason is the correct explanation for the assertion."

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