synthetic fibres and plastics

_______ are the chemicals which gave fruits their smell

• Ester

• Wood pulp

• Ethene

• Amide

Which of the following are not in 5R' principal

• Refuse

• Repurchase

• Reuse

• Recycle

Which of the following is an thermosetting plastics

• PVC

• Bakelite

• Cotton

• Silk

Linen is obtained from _____ plant

• Flax

• Cellulose

• Cocoons

Plastics are biodegradable

• Yes

• No

Which of the following groups contains all synthetic substances

• Nylon,terylene,wool

• Cotton,polysters,rayon

• PVC ,polythene,bakelite

Identify the fibre of picture

• PVC

• Bakelite

• Nylon

• PET

Expand PP of one of the plastic

• Polypropylene

• Polypropene

• Polypropyne

• Polyvinyl chloride

While preparing best fabric mixing of a natural fibre with one or more artificial fibres .This process is called as

• Polymerisatoin

• Blending

• Stitching

• None of these

PET is a form of

• Steel

• Glass

• Polyester

• Nylon