Question

4. Polyester is a synthetic fibre obtained from repeating chemical units called _____.
5.______,_____ can be deformed on heating.
6.______is used to prepare non-stick coating on pans.
7. Synthetic fibres are also called_____, _______ fibres.​

Answer 1

Explanation:

4. Polyester is a synthetic fibre obtained from repeating chemical units called _____.

5.______,_____ can be deformed on heating.

6.______is used to prepare non-stick coating on pans.

7. Synthetic fibres are also called_____, _______ fibres.