A : Ethers can't be distilled upto dryness due to fear of explosion .
R : Due to the formation of peroxide , it is explosive

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false , then mark (3)
D. If both Assertion and Reason are false statements , then mark (4)

Answer

To solve the question, we need to analyze the assertion (A) and the reason (R) provided:

**Assertion (A):** Ethers can't be distilled up to dryness due to fear of explosion.
**Reason (R):** Due to the formation of peroxide, it is explosive.

### Step-by-Step Solution:

1. **Understanding Ethers:**
- Ethers are organic compounds characterized by an oxygen atom connected to two alkyl or aryl groups. They are generally known for their low boiling points and high volatility.

2. **Distillation of Ethers:**
- Distillation is a common method used to purify liquids. However, when distilling ethers, one cannot distill them to dryness. This is primarily due to safety concerns.

3. **Formation of Peroxides:**
- Ethers can undergo oxidation in the presence of oxygen, leading to the formation of peroxides. Peroxides are compounds that contain a peroxide functional group (-O-O-), which can be highly reactive.

4. **Explosive Nature of Peroxides:**
- The peroxides formed from ethers are known to be explosive and sensitive. This means that if ethers are distilled to dryness, the remaining peroxides can lead to dangerous situations, including explosions.

5. **Volatility Comparison:**
- Ethers are volatile and evaporate easily, while the peroxides formed are less volatile. When distilling, if the ether evaporates, the less volatile peroxide remains, which can accumulate and pose an explosion risk.

6. **Conclusion:**
- Both the assertion and the reason are true. The assertion states that ethers cannot be distilled to dryness due to the risk of explosion, and the reason explains that this is due to the formation of peroxides, which are indeed explosive.

### Final Answer:
Both the assertion (A) and the reason (R) are true, and the reason (R) correctly explains the assertion (A).