EASY
8th Kerala Board
IMPORTANT
Earn 100

Some monomers and polymers are given in the following table:

Monomer Polymer
Ethene Polyethene
Propene Polypropene
Styrene Polystyrene
Vinyl chloride Polyvinyl chloride

 What is meant by the terms ‘monomer’ and ‘polymer’?

Analyse the table and find out.

Important Questions on Fibres and Plastics

MEDIUM
8th Kerala Board
IMPORTANT

Some monomers and polymers are given in the following table:

Monomer Polymer
Ethene Polyethene
Propene Polypropene
Styrene Polystyrene
Vinyl chloride Polyvinyl chloride

What is the common system of nomenclature of polymers?

Analyse the table and find out.

MEDIUM
8th Kerala Board
IMPORTANT
Natural fibres and synthetic fibres are used in the field of textile manufacturing.
Compare their merits and demerits and tabulate.
MEDIUM
8th Kerala Board
IMPORTANT

Natural fibres and synthetic fibres are used in the field of textile manufacturing. Which of these clothes is most suited for the following situations? Give reason.
While cooking in the kitchen.

MEDIUM
8th Kerala Board
IMPORTANT

Natural fibres and synthetic fibres are used in the field of textile manufacturing. Which of these clothes is most suited for the following situations? Give reason.

To wear during summer.

MEDIUM
8th Kerala Board
IMPORTANT

You know what thermoplastics and thermosetting plastics are.

Which of these plastics cannot be recycled?

HARD
8th Kerala Board
IMPORTANT

You know what thermoplastics and thermosetting plastics are. 

You might have noticed that those who collect old plastics do not accept a certain type of plastic articles. What are they? What may be the reason for this?

MEDIUM
8th Kerala Board
IMPORTANT
Some argue that plastics are to be completely banned as they cause environmental pollution. What is your view?
HARD
8th Kerala Board
IMPORTANT
The school science club has decided to conduct poster propaganda for creating awareness about pollution due to plastics. Prepare some posters for this.