Plastics Quiz

Which of the following is NOT a characteristic of thermoplastics?

• Can be melted and remoulded

• Examples include PVC and LDPE

• Form a class of plastics called thermosetting plastics

• Linear and lightly cross-linked polymers

What is the main difference between thermoplastics and thermosetting plastics?

• Thermoplastics are stronger.

• Thermosetting plastics are more flexible.

• Thermoplastics can be remoulded, while thermosetting plastics cannot.

• Thermosetting plastics are cheaper to produce.

Which of the following is an example of a thermosetting plastic?

• PVC

• Bakelite

• LDPE

• Nylon

Which of the following plastics is used for making containers for microwave cooking?

• HDPE

• LDPE

• PET

• PVC

What is the main property of plastics that makes them suitable for making handles of cooking vessels?

• High thermal conductivity

• Low thermal conductivity

• High electrical conductivity

• Low electrical conductivity

Which plastic is used for making pipes for sanitary fittings?

• PVC

• PP

• PS

• PET

What is the main advantage of using plastics in laboratories for storing chemicals?

• Plastics are highly reactive with chemicals.

• Plastics are easily corroded by chemicals.

• Plastics do not react with chemicals and are resistant to corrosion

• Plastics are easily broken by chemicals.

Which of the following is NOT a common property of most plastics?

• Low thermal conductivity

• Low electrical conductivity

• High solubility in water

• Inflammability

What is the main problem associated with the disposal of plastics?

• Plastics are expensive to dispose of.

• Plastics are non-biodegradable and harm the environment.

• Plastics are not easily collected for disposal.

• Plastics are too light to be disposed of properly.

What is the best way to reduce the harmful effects of plastic disposal?

• Burning plastic waste.

• Dumping plastic waste in landfills.

• Recycling plastic waste.

• There is no way to reduce the harmful effects.