Assertion : When the vapours of a primary, secondary or tertiary alcohol are passed over heated copper at 573 K, an aldehyde or ketone is formed. Reason : Reduction of alcohols takes place

Options

A. if both assertioon and reason are true and reason is the corrct explanation of assertion.
B. If both assertion and reason are ture but reason is not the corrcet explanation of assertion.
C. If assertion is true but reason is false .
D. if both assertion and reason are false.

Explanation

To analyze the given assertion and reason, we will break down the statements step by step.

### Step 1: Understanding the Assertion
The assertion states that when the vapors of primary, secondary, or tertiary alcohols are passed over heated copper at 573 K, an aldehyde or ketone is formed.

**Explanation:**
- Primary alcohols (1°) when oxidized typically yield aldehydes.
- Secondary alcohols (2°) when oxidized yield ketones.
- Tertiary alcohols (3°) do not oxidize to aldehydes or ketones but can dehydrate to form alkenes.

### Step 2: Analyzing the Reason
The reason provided states that the reduction of alcohols takes place.

**Explanation:**
- Reduction is the gain of electrons or decrease in oxidation state, which is not what happens in this scenario. Instead, alcohols are oxidized when passed over heated copper, leading to the formation of aldehydes or ketones.

### Step 3: Conclusion
- The assertion is partially correct because primary and secondary alcohols do yield aldehydes and ketones, respectively, upon oxidation.
- The reason is incorrect because the process involves oxidation, not reduction.

### Final Answer:
Both the assertion and reason are not entirely true. The assertion is true for primary and secondary alcohols but does not apply to tertiary alcohols, while the reason is false. Therefore, the correct conclusion is that the assertion is true, but the reason is false.