Page No 438: - Chapter 15 - Polymers - Exercise Solutions - Ncert Solutions class 12 - Chemistry
Updated On 26-08-2025 By Lithanya
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Question 15.19:
How is dacron obtained from ethylene glycol and terephthalic acid?
Answer:
The condensation polymerisation of ethylene glycol and terephthalic acid leads to the formation of dacron.
Question 15.20:
What is a biodegradable polymer? Give an example of a biodegradable aliphatic polyester.
Answer:
A polymer that can be decomposed by bacteria is called a biodegradable polymer.
Poly-β-hydroxybutyrate-CO-β- hydroxyvalerate (PHBV) is a biodegradable aliphatic polyester.
