Bisphenol A (BPA) , a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?
Detailed Explanation:
Answer: Option 2 — Polycarbonate
Bisphenol A (BPA) is a key structural component in the manufacture of polycarbonate plastics. Polycarbonates are widely used in consumer products such as water bottles, food storage containers, eyeglass lenses, and CDs/DVDs. BPA has raised significant health concerns as it can act as an endocrine disruptor, interfering with the body's hormonal system.
📝 Short Notes: Types of Plastics and BPA
| Plastic Type | Common Uses | Contains BPA? |
|---|---|---|
| Polycarbonate (PC) | Water bottles, food containers, eyeglass lenses, CDs/DVDs, baby bottles | Yes – BPA is a key component |
| Polyethylene Terephthalate (PET) | Beverage bottles, food packaging, synthetic fibers | No |
| Low Density Polyethylene (LDPE) | Plastic bags, squeeze bottles, container lids | No |
| Polyvinyl Chloride (PVC) | Pipes, flooring, wire insulation, medical tubing | No |
| High Density Polyethylene (HDPE) | Milk jugs, detergent bottles, toys | No |
- BPA Health Concerns: Acts as endocrine disruptor, mimics estrogen, linked to reproductive issues, developmental problems, and metabolic disorders
- BPA-Free Alternatives: Many manufacturers now produce BPA-free polycarbonates or use alternative plastics
- Regulation: Several countries have banned BPA in baby bottles and food contact materials
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