A: Glyptal is obtained by condensation polymerization of ethylene glycol and terephthalic acid.
R: Glyptal is used in the manufacture of fabrics.

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 the mark 4.

Answer

To solve the question regarding Glyptal, we will analyze both the assertion (A) and reason (R) statements step by step.

### Step 1: Analyze the Assertion (A)
The assertion states: "Glyptal is obtained by condensation polymerization of ethylene glycol and terephthalic acid."

- Glyptal is indeed a type of polyester formed through the condensation polymerization process.
- The reaction involves ethylene glycol (HO-CH2-CH2-OH) and terephthalic acid (C6H4(COOH)2).
- During this process, water (H2O) is eliminated as a byproduct, which is characteristic of condensation polymerization.

**Conclusion for Step 1**: The assertion is **true**.

### Step 2: Analyze the Reason (R)
The reason states: "Glyptal is used in the manufacture of fabrics."

- Glyptal is primarily used in applications such as coatings, adhesives, and binding materials, rather than in the manufacture of fabrics.
- It is known for its use in the production of varnishes and as a component in certain types of resins.

**Conclusion for Step 2**: The reason is **false**.

### Step 3: Final Evaluation
- Since the assertion is true and the reason is false, we can conclude that the overall statement (A: True, R: False) indicates that the relationship between the two is not valid.

### Final Answer
Both the assertion and reason are not correctly related. The assertion is true, but the reason is false.