MCQ - Synthetic Fibers And Plastics, Science, Class 8 | EduRev Notes

Science Class 8

Class 8 : MCQ - Synthetic Fibers And Plastics, Science, Class 8 | EduRev Notes

The document MCQ - Synthetic Fibers And Plastics, Science, Class 8 | EduRev Notes is a part of the Class 8 Course Science Class 8.
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Q.1. Fibre obtained by chemical treatment of wood pulp is called ___________. 
(a) Natural silk
(b) Rayon
(c) Nylon
(d) Polyester
Ans. (b)

Q.2. Nylon is obtained by __________.
(a) Treating wood pulp
(b) Solidifying water
(c) Mixing coal, air and water
(d) Mixing chemicals
Ans. (c)

Q.3. _____________ is stronger than steel wire.        
(a) Cotton fibre
(b) Silk thread
(c) Plastic thread
(d) Nylon fibre
Ans. (d)

Q.4. ________ is polyester used for making bottles, utensils, films.     
(a) Leather
(b) Nylon
(c) PET
(d) Plastic
Ans. (c)

Q.5. Polyester is repeating units of _______.         
(a) Ether
(b) Beads
(c) Carbon
(d) Ester
Ans. (d)

Q.6. _______ is a synthetic fibre used for making woollen clothes.        
(a) Acrylic
(b) Polyester
(c) Fibre
(d) Cotton
Ans. (a)

Q.7. You must not wear synthetic fibres while working with fire because _______. 
(a) They make you feel cold and so you may get a frost-bite
(b) They are lustrous and so they shine under the flame
(c) They melt on heating and stick to your body when they catch fire
(d) None of the above
Ans. (c)

Q.8. Synthetic fibres are made using ______ as raw materials.        
(a) Woolen products
(b) Polymers
(c) Cotton
(d) Petrochemicals
Ans. (d)

Q.9. _________ is used commonly for making parachute ropes.        
(a) Polythene
(b) Polyester
(c) Nylon
(d) Silk
Ans. (c)

Q.10. ___________ is a popular polyester.        
(a) Plastic
(b) Polythene
(c) Rayon
(d) Terelyne
Ans. (d)

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