CBSE Class 8 Science Synthetic Fibre and Plastics MCQs

Refer to CBSE Class 8 Science Synthetic Fibre and Plastics MCQs provided below available for download in Pdf. The MCQ Questions for Class 8 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 3 Synthetic Fibres and Plastics are an important part of exams for Class 8 Science and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 8 Science and also download more latest study material for all subjects

MCQ for Class 8 Science Chapter 3 Synthetic Fibres and Plastics

Class 8 Science students should refer to the following multiple-choice questions with answers for Chapter 3 Synthetic Fibres and Plastics in Class 8.

Chapter 3 Synthetic Fibres and Plastics MCQ Questions Class 8 Science with Answers

Question. Polyester is made of repeating units of chemical called as -
(A) Ester
(B) Cotton
(C) Ether
(D) None of these

 
Answer : A
 
Question. Petroleum is the main source of -
(A) Silk
(B) Plastic
(C) Cotton
(D) None of these 

 Answer : B

Question. Photochromic glass contains - 
(A) Silver bormide
(B) Silver iodide
(C) Silver chloride
(D) All the above 

 Answer : D

Question. Which of the following is used in endoscopy-
(A) Optical fibres
(B) Glass fibres
(C) Glass wool
(D) None of these
 
Answer : A
 
Question. Purple-blue coloured glass is obtained by the addition of -
(A) Chromium salts
(B) Ferrous oxide
(C) Cobalt salts
(D) None of the above 

 Answer : C

Question. Terra Cotta is -
(A) Kaolin
(B) Clay
(C) Unglazed primitive pottey
(D) Porcelain   

 Answer : C

Question. Which of the following is a natural polymer-
(A) Cellulose
(B) Nylon
(C) Polythene
(D) PVC
 
Answer : C
 
Question. Which of the following have long-chains of protein -
(A) Jute
(B) Cotton
(C) Silk and wool
(D) All the above
 
Answer : C
 
Question. Thermocole is made from -
(A) Polythene
(B) Polystyrene
(C) Perspex
(D) Teflon
 
Answer : B
 
Question. Which of the following is thermoplastic -
(A) Polythene
(B) Bakelite
(C) Both the above
(D) None of the above
 
Answer : A
 
Question. Contacts lenses are made from -
(A) Polyvinyl chloride
(B) Polystyrene
(C) Lucite
(D) Teflon
 
Answer : C
 
Question. Which of the following are thermosets-
(A) Formica and Melamine
(B) Polystyrene
(C) Polythene
(D) Thermocole
 
Answer : A
 
Question. Which of the following is similar to cotton ?
(A) Nylon
(B) Dacron
(C) Rayon
(D) Terylene
 
Answer : C
 
Question. Which of the following do not soften upon heating -
(A) Lucite
(B) Bakelite
(C) Polystyrene
(D) Polythene
 
Answer : B
 
Question. Which of the following does not produce insoluble carbonates in hard water-
(A) Soap
(B) Detergents
(C) Both the above
(D) None of these
 
Answer : B
 
Question. Which of the following is alkaline in nature -
(A) Soap
(B) Detergents
(C) Both the above
(D) None of these
 
Answer : B
 
Question. The correct formula of washing soda is -
(A) Na2CO3
(B) Na2CO3.H2O
(C) Na2CO3.9H2O
(D) Na2CO3.10H2O
 
Answer : D
 
Question. If tartaric acid is not added in baking powder, the cake will taste bitter due to the presence of -
(A) Sodium hydrogen carbonate
(B) Carbon dioxide
(C) Sodium carbonate
(D) All of these
 
Answer : C
 
Question. Soda-acid fire extinguisher extinguishes the fire -
(A) By cutting the supply of air
(B) by removing the combustible substance
(C) By raising the ignition temperatue
(D) None of these
 
Answer : A
 
Question. The simplest formula of bleaching powder is -
(A) Ca(OCl2)
(B) CaOCl2
(C) CaOCl2.H2O
(D) Ca(OCl2).2H2O
 
Answer : B

Question. Which of the following fibre is natural polymer:
(a) rayon
(b) cotton
(c) polyester
(d) polythene

Answer : B

Question. PET is a very familiar form of
(a) chemical
(b) monomer
(c) polyester
(d) polyphenyl

Answer : C

Question. Which Of The Following Is Not A Common Property Of Plastic?
(a) Non-reactive
(b) Light in weight
(c) Durable
(d) Good conductor of electricity

Answer : D

Question. The Material Similar To Silk In Appearance Is:
(a) Nylon
(b) Rayon
(c) Polyester
(d) Terylene

Answer : B

Question. Raw materials for preparation of synthetic fibres are obtained from
(a) coal
(b) petroleum
(c) natural gas
(d) all of these

Answer : D

Question. In Which Of The Following Statement Is Or Are Incorrect?
(a) Cotton fabrics do not wrinkle easily.
(b) Teflon is used to make non-stick cookware.
(c) Rayon is prepared by using wood pulp.
(d) Nylon is used for making parachute and stockings.

Answer : A

Question. Which of the following is not thermoplastics:
(a) acrylic
(b) polyethylene
(c) polystyrene
(d) melamine

Answer : D

Question. Cellulose is made up of a large number of ………………… units.
(a) glucose
(b) fructose
(c) protein
(d) none of these

Answer : A

Question. The plastic used for making water pipes :
(a) Melamine
(b) PVC
(c) Polyester
(d) Bakelite

Answer : B

Question. Which of the following is a bad conductor of electricity?
(a) Plastic
(b) Copper
(c) Steel
(d) Brass

Answer : A

 

Question. A chain of small chemical units combined to form a large single unit is called ____
(a) Polymer
(b) Poly
(c) Polythene
(d) None of the above

Answer : A 

Question. Polythene and PVC are examples of
(a) Bio degradable substance
(b) Thermosetting plastics
(c) Thermoplastics
(d) Rayon

 Answer : C

Question. Plastics which when moulded once, cannot be softened by heating. Such plastics are called ____
(a) Polythene
(b) Thermoplastics
(c) Polyster
(d) Thermosetting plastics

 Answer : D

Question. Polycot is made by mixing two types of fibres namely
(a) Silk + Cotton
(b) Polythene + cotton
(c) Silk + Polyester
(d) Polyester + Cotton

 Answer : D

Question. The 4 R Principle is
(a) Reduce, Reuse, Recycle, Recover
(b) Remember, reduce, Recycle, Rejoice
(c) Repeat, Rejoice, recycle, reduce
(d) None of the above

 Answer : A

Question._____________ is an example of natural polymer
(a) Rayon
(b) Cellulose
(c) Nylon
(d) All of the above

 Answer : B

Question. Which of the following is Non-biodegradable
(a) Woolen clothes
(b) Plastic bag,
(c) Cotton cloth
(d) Wood

 Answer : B

Question. Bakelite and Melamine are examples of
(a) Thermosetting plastics
(b) Silk
(c) Nylon
(d) Rayon

 Answer : A

Question. Fire proof plastic uniform worn by fire fighters has a coating of _____ to make it fire resistant.
(a) Nylon
(b) Rayon
(c) Melamine plastic
(d) Silk

 Answer : C

Question. The coating on modern non- stick cookware and electric iron is of
(a) Terrycot
(b) Rayon
(c) Polyester
(d) Teflon

Answer : D

Question. Which of the following is a natural fibre?
(a) Wool
(b) Nylon
(c) PVC
(d) Polythene

Answer : A

Question. Which of the following is a characteristic of plastics?
(a) Electrical conductors
(b) Heat conductors
(c) Biodegradable
(d) Non-biodegradable

Answer : D

Question. Pick The Synthetic Fibre Out Of The Following:
(a) Cotton
(b) Nylon
(c) Jute
(d). Wool

Answer : B

Question. The plastic which cannot be recycled is
(a) jute
(b) rayon
(c) petrochemicals
(d) bakelite

Answer : D

Question. Which of the following are made from thermosetting plastic?
(a) Bottles
(b) Crockery
(c) Shoes
(d) Handbags

Answer : B

Question. Wood pulp is used to make
(a) plastic
(b) wool
(c) jute
(d) rayon

Answer : D

Question. Which of the following once set do not soften on heating:
(a) thermoplastic
(b) thermosetting plastic
(c) polvthene
(d) none of these

Answer : B

Question. Which of the following is natural fibre obtained from plants?
(a) Cotton
(b) Wool
(c) Rayon
(d) Ketone

Answer : A

Question. Which of the following cannot be recycled:
(a) plastic toys
(b) plastic bowls
(c) plastic covering on electric wires
(d) ball point pens

Answer : C

Question. Polymer present in plants is: 
(a) cellulose
(b) nylon
(c) rubber
(d) P.V.C.

Answer : A

Question. Synthetic fibres are:
(a) strong
(b) durable
(c) hining
(d) all of these

Answer : D

Question. Which of the following garbage is biodegradable:
(a) broken plastics things
(b) fruit peels
(c) cement
(d) iron wastes

Answer : B

Question. Paheli Is Writing Some Statements. She Wants To Know In Which Of The Following Statements Is Or Are Incorrect?
(a) The fabric terry wool is obtained by mixing terylene and wool.
(b) It is risky to wear synthetic clothes while working in the kitchen.
(c) Most of the plastics are biodegradable.
(d) Synthetic fibres do not melt on heating.

Answer : D

Question. Which of the following is obtained from hair of an animal:
(a) nylon
(b) silk
(c) cotton
(d) wool

Answer : D

Question. A synthetic fibre resembling wool is:
(a) rayon
(b) nylon
(c) acrylic
(d) none of these

Answer : C

Question. Which of the following is natural fibre?
(a) Rayon
(b) Nylon
(c) Polyester
(d) Cotton

Answer : D

Question. Which of the following is used to make non-stick cookwares:
(a) polyester
(b) teflon
(c) rayon
(d) nylon

Answer : B

Question. Polycot Is Obtained By Mixing:
(a) Nylon and wool
(b) Polyester and wool
(c) Nylon and cotton
(d) Polyester and cotton

Answer : D

Question. Which of the following fibre has highest tensile strength?
(a) Cotton
(b) Silk
(c) Rayon
(d) Nylon

Answer : D

Question. PET is form of:
(a) steel
(b) glass
(c) polyester
(d) nylon

Answer : C

 

Chapter 01 Crop Production and Management
CBSE Class 8 Science Crop Production and Management MCQs
Chapter 02 Microorganisms Friend or Foe
CBSE Class 8 Science Microorganisms Friend or Foe MCQs
Chapter 03 Synthetic Fibres and Plastics
CBSE Class 8 Science Synthetic Fibre and Plastics MCQs
Chapter 04 Materials Metals and Non Metals
CBSE Class 8 Science Materials Metals and Non Metals MCQs
Chapter 05 Coal and Petroleum
CBSE Class 8 Science Coal and Petroleum MCQs
Chapter 06 Combustion and Flame
CBSE Class 8 Science Combustion and Flame MCQs
Chapter 07 Conservation of Plants and Animals
CBSE Class 8 Science Conservation of Plants and Animals MCQs
Chapter 08 Cell Structure and Functions
CBSE Class 8 Science Cell Structure and Functions MCQs
Chapter 09 Reproduction in Animals
CBSE Class 8 Science Reproduction in Animals MCQs
Chapter 10 Reaching the Age of Adolescence
CBSE Class 8 Science Reaching The Age of Adolescence MCQs
Chapter 11 Force and Pressure
CBSE Class 8 Science Force and Pressure MCQs
Chapter 14 Chemical Effects of Electric Current
CBSE Class 8 Science Chemical Effect of Electric Current MCQs
Chapter 15 Some Natural Phenomena
CBSE Class 8 Science Some Natural Phenomena MCQs
Chapter 17 Stars and The Solar System
CBSE Class 8 Science Stars and Solar System MCQs
Chapter 18 Pollution of Air and Water
CBSE Class 8 Science Pollution of Air and Water MCQs
More MCQ Questions Class 8 Science
CBSE Class 8 Science MCQs Bank

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