WT 7 Chemistry (VIII)

The fibres that are made by human beings are called ...

• Man-made or synthetic fibres

• Natural fibres

• Artificial fibres

• Plastic

Plastics that can be moulded once and cannot be softened by heating are

• thermoplastics

• thermosetting plastic

• thermopet plastics

• thermoplant plastics

Which of the following resists fire?

• PVC

• Polythene

• Bakelite

• Melamine

Non-stick coating on cookware is

• Teflon

• Bakelite

• Melamine

• PVC

Uniforms of firemen have coating of ______ to make them flame resistant.

• melamine

• teflon

• bakelite

• none of these

Full form of PVC is

• Polyvinyl chlorine

• Polyvariety of chlorine

• Polyvinyl chloride

• Polyethene chloride

Choose the odd one.

• Nylon

• Cotton

• Acrylic

• Polyester

Example of polythene is

• ropes

• parachutes

• plastics

• none of these

Which fibre is also known as regenerated fibre?

• Acrylic

• Nylon

• Teflon

• Rayon

Cellulose is a polymer of

• fructose

• glucose

• sucrose

• glucose and fructose