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Polychlorinated biphenyls are chemicals ...

Polychlorinated biphenyls are chemicals useful is

A

Fire-resistants

B

Fertilisers

C

Pesticides

D

Germicides

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Polychlorinated Biphenyls (PCBs)**: - PCBs are synthetic chemicals that were widely used in various industrial applications. 2. **Properties of PCBs**: - They are known for their resistance to high temperatures and pressures, making them suitable for specific applications. 3. **Applications of PCBs**: - Due to their properties, PCBs are primarily used in electrical equipment such as: - Capacitors - Transformers - Cable insulation - Switches and regulators 4. **Health Concerns**: - Despite their utility, PCBs have been associated with several health risks, including skin irritation, acne, eye problems, and are known to be carcinogenic (cancer-causing), particularly linked to liver and gallbladder cancer. 5. **Conclusion**: - Given their resistance to fire and high temperatures, the most appropriate classification for the usefulness of PCBs is in fire-resistant applications. **Final Answer**: Polychlorinated biphenyls are chemicals useful in fire-resistant applications. ---
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