General Science • ChemistryHard
Which of the following polymers is classified as a biodegradable polyester formed by bacterial fermentation of hydroxyalkanoates?
A. Polyethylene terephthalate
B. Polyhydroxybutyrate valerate✓ Correct Answer
C. Polytetrafluoroethylene
D. Polyvinyl chloride
💡 Solution & Explanation
Polyhydroxybutyrate valerate is a copolymer of hydroxybutyric acid and hydroxyvaleric acid synthesized by certain bacteria, serving as a fully biodegradable eco-friendly thermoplastic polyester. Polyethylene terephthalate, polytetrafluoroethylene, and polyvinyl chloride are synthetic petrochemically derived polymers that persist in the environment for centuries. Biodegradable polymers play a critical role in reducing plastic waste accumulation in terrestrial and aquatic ecosystems.
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