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Synthetic Fibre and Plastics class 8 MCQ

Quiz
Q1. Many samll units combine to form a large single unit called ______.

fabrics

plastics

polymer

monomer


Q2. What is the smaller unit of cotton?

cellulose

farmer

cloth

glucose


Q3. What is the smaller unit of cellulose?

glucose

grass

cotton

nylon


Q4.Silk was discovered in which country

India

China

Russia

Japan


Q5.Rayon fiber was obtained by chemical treatment of which things?

chemical

slice of bark

trunk of the tree

wood pulp


Q6. Rayon is a replacement of which of the following natural fibres?

cotton

silk

wool

jute


Q7. Rayon is mixed with _____ to make beed sheets or mixed with ______ to make carpet.

cotton, silk

cotton, jute

wool, jute

cotton, wool


Q8. Nylon was discovered in which year?

1929

1932

1931

1930


Q9. Nylon is prepared from ______ and _____.

coal, water

water, ice

coal, ice

coal, rayon


Q10. Which is the first fully synthetic fiber?

rayon

nylon

polyester

none of the above


Q11. Nylon fibre was ______, ______ and light.

heavy, mixed

strong, weak

strong, elastic

heavy, weak


Q12. Name any one article made by nylon

socks

ropes

tents

all of the above


Q13. which of the following is a type of polyester?

PET

terylene

both (a) and (b)

none of these


Q14. PET full form.

Polyethylene terephthalate

Polythyne terylene

Polyester terylene

Petrochemical terylene


Q15. Small units of polyester are?

poly

ester

both of these

none of these


Q16. Name the strongest synthetic fibre.

Acrylic

Nylon

Polyester

Rayon


Q17. Artifical wool is also called ______.

acrylic

nylon

polyester

none of the above


Q18. All the synthetic fibers are prepared by a number of processes using raw materials of petroleum origin, called _______.

petrosyites

polyester

polyethylene

petrochemicals


Q19. Plastics which can be deformed easily on heating and can be bent easily are known as ________.

thermoplastic

petrochemical plastic

thermosetting plastics

none of the above


Q20. Plastics which can't be deformed easily on heating and can be bent easily are known as ________.

thermoplastic

petrochemical plastic

thermosetting plastics

none of the above



Test your knowledge

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