Assertion : Most of the synthetic polmers are non-biodegradable .
Reason : During polymerisation , the polymers become toxic and non-biodegradable .

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion .
B. If both assertion and reason are true but reason is not the correct explanation of assertion .
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

To solve the assertion and reason question, we will analyze both statements separately and determine their validity.

### Step 1: Analyze the Assertion
**Assertion:** Most of the synthetic polymers are non-biodegradable.

**Explanation:** Synthetic polymers, such as plastics, are primarily derived from petrochemicals and are designed to be durable and resistant to degradation. This means that they do not easily break down in the environment, making them non-biodegradable. Therefore, the assertion is **true**.

### Step 2: Analyze the Reason
**Reason:** During polymerization, the polymers become toxic and non-biodegradable.

**Explanation:** The process of polymerization involves the chemical reaction of monomers to form polymers. While some polymers can be toxic, not all synthetic polymers are toxic, and the statement that they become toxic during polymerization is misleading. Many synthetic polymers are safe for use in everyday products. Thus, the reason is **false**.

### Step 3: Conclusion
Based on the analysis:
- The assertion is true: Most synthetic polymers are indeed non-biodegradable.
- The reason is false: Not all synthetic polymers become toxic during polymerization.

### Final Answer
The correct conclusion is that the assertion is true, and the reason is false.