Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of

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UPSC Prelims is a competitive examination conducted in India. This question is from the 2021 UPSC Prelims Science & Technology paper.

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Question

Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?

Accepted Answer

Correct Answer: B — PolycarbonateStep-by-step Solution:Bisphenol A (BPA) is an industrial chemical used primarily to make polycarbonate plastic, a hard, clear, and durable plastic. It is also used in epoxy resins that line the inside of metal food and beverage cans. Polycarbonate is used in water bottles, baby bottles, food storage containers, and tableware. ✓Other plastics: LDPE (low-density polyethylene) — used in plastic bags, does not contain BPA. PET (polyethylene terephthalate) — used in soft drink bottles, does not contain BPA. PVC (polyvinyl chloride) — used in pipes, does not contain BPA.Why other options are incorrect:Option A (LDPE): Made from ethylene, no BPA.Option C (PET): Made from terephthalic acid and ethylene glycol.Option D (PVC): Made from vinyl chloride monomer.Key Concept: BPA can leach from polycarbonate containers, especially when heated. It is an endocrine disruptor linked to reproductive, neurological, and metabolic disorders. Many countries have restricted BPA in baby products. BPA-free alternatives include polypropylene, Tritan, and glass.

Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?

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Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?

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