Which statement best describes a key property of PVC?

Which statement best describes a key property of PVC?

• A. Tough, flexible, weather resistance, chemical resistance
• B. Brittle and easily shattered
• C. Transparent and brittle
• D. Biodegradable under standard conditions

Answer: (A)

PVC is a polymer whose key strengths are toughness and the ability to be either rigid or flexible, plus strong resistance to weathering and chemicals. The chlorine in PVC gives it durability against many chemicals and environmental exposure, so it lasts well outdoors and in harsh conditions. Plasticizers can be added to make it flexible for uses like cables and films, while without plasticizers it can be rigid for pipes and profiles. These traits—toughness, adjustable flexibility, and good weather and chemical resistance—make PVC a versatile and durable material. The other descriptions don’t fit as well. PVC isn’t characterized by being brittle and easily shattered; even rigid forms are generally durable. While some clear PVC exists, being transparent and brittle isn’t its defining feature. And PVC isn’t biodegradable under normal conditions, so that point isn’t true.

PVC is a polymer whose key strengths are toughness and the ability to be either rigid or flexible, plus strong resistance to weathering and chemicals. The chlorine in PVC gives it durability against many chemicals and environmental exposure, so it lasts well outdoors and in harsh conditions. Plasticizers can be added to make it flexible for uses like cables and films, while without plasticizers it can be rigid for pipes and profiles. These traits—toughness, adjustable flexibility, and good weather and chemical resistance—make PVC a versatile and durable material.

The other descriptions don’t fit as well. PVC isn’t characterized by being brittle and easily shattered; even rigid forms are generally durable. While some clear PVC exists, being transparent and brittle isn’t its defining feature. And PVC isn’t biodegradable under normal conditions, so that point isn’t true.