Lakhmir Singh and Manjit Kaur Solutions for Chapter: Synthetic Fibres and Plastics, Exercise 3: Long Answer Type Questions
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Synthetic Fibres and Plastics, Exercise 3: Long Answer Type Questions
Attempt the free practice questions on Chapter 3: Synthetic Fibres and Plastics, Exercise 3: Long Answer Type Questions with hints and solutions to strengthen your understanding. Lakhmir Singh's SCIENCE FOR CLASS 8 solutions are prepared by Experienced Embibe Experts.
Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Synthetic Fibres and Plastics, Exercise 3: Long Answer Type Questions with Hints & Solutions
What is rayon? How is rayon made?
Give any two uses of rayon.
What are synthetic fibres? Name any two synthetic fibres.
Why have synthetic fibres become more popular than natural fibres?
What are thermoplastics? Give two examples of thermoplastics.
What are thermosetting plastics? Give two examples of thermosetting plastics.
Explain why thermoplastics become soft on heating but thermosetting plastics do not become soft on heating. Draw labelled diagrams to illustrate your answer.
What is meant by biodegradable and non-biodegradable materials? Give examples of two biodegradable and two non-biodegradable materials.
