State two uses of polythene.

Important Questions on Synthetic Fibres and Plastics

MEDIUM

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 38

Write the full form of PVC. Is it thermoplastic or thermosetting plastic?

MEDIUM

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 39

Write two uses of bakelite.

MEDIUM

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 40

State two uses of melamine.

MEDIUM

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 41

Give two uses of PVC.

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 42

Write some of the uses of plastics in healthcare industry.

MEDIUM

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 43

Classify the following as biodegradable and non-biodegradable materials:
Woollen clothes, Polythene bags, Paper, Aluminium cans, Toothbrush, Peels of vegetables and fruits, Cotton cloth, Jute bag, Electric switch, Frying pan handle.

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 44

State whether plastic is biodegradable or non-biodegradable? Give reasons for your answer.

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 3 - Synthetic Fibres and Plastics>Short Answer Type Questions>Q 45

Explain how, the use of plastics has a bad effect on the environment.