CBSE Questions for Class 8 Chemistry Synthetic Fibres And Plastics Quiz 1 - MCQExams.com

Why plastic containers are favoured for storing food?
  • Plastics are light in weight
  • Plastic is a strong and durable material 
  • Plastics are easy to handle
  • All of the above
Which of the following are uses of plastics in health care industry?
  • Packaging of tablets
  • Stitching wounds
  • Syringes
  • All of the above
The fibre used in parachute making and ropes for rope climbing is__________.
  • Nylon
  • Rayon
  • Teflon
  • Jute
State true or false.
Yarn can be converted into fabrics by the process of spinning.
  • True
  • False
Electrical wires have a coating of an insulting material. The material generally used for insulation is :
  • sulphur
  • graphite
  • PVC
  • All of the above
Which of the following is a disadvantage of nylon?
  • They do not shrink
  • They are less resistant to sun light
  • They are resistant to insects and molds
  • They can be easily dyed
When plastics are burnt, toxic substances are released into the air that is causing water pollution.
  • True
  • False
State whether true or false:

Ropes made of rayon are used in cranes and elevators.
  • True
  • False
Plastics are generally good conductors of electricity.
  • True
  • False
Plastics are generally eco-friendly.
  • True
  • False
Nylon is obtained from :
  • coal
  • air
  • water
  • all of the above
Burning of plastic causes:
  • water pollution
  • air pollution
  • sound pollution
  • all of these
Plastics are insoluble in water.
  • True
  • False
Plastics are mainly used by everyone because:
  • They are cheap
  • Easy to handle
  • Light weight
  • All of the above

Substances which cannot be decomposed by micro-organisms are called non-biodegradable substances.
  • True
  • False
Which of the following substance is biodegradable?
  • Cloth
  • Thermosetting plastic
  • Thermoplastic
  • PVC pipes
A material which is not easily decomposed by natural processes is termed as :
  • biodegradable material
  • non-biodegradable material
  • recycled material
  • natural material
Like synthetic fibres, plastic is also a:
  • polymer
  • polythene
  • polycot
  • acrylic
Which synthetic fibre is used in making ropes for rock climbing and parachutes ?
  • Nylon
  • Rayon
  • Polycot
  • Jute
Telephone instruments, plastic toys, ball point pens, plastic bowls are examples of:
  • Thermoplastics
  • Thermosetting plastic
  • Polyester
  • None of the above
Which plastic is used for replacing materials like glass for making bottles and jars?
  • PET (polyethylene terephthalate)
  • PVC (Polyvinyl chloride)
  • Bakelite
  • Teflon
Rayon has properties similar to:
  • wool
  • jute
  • silk
  • cotton
  • Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  • Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
  • Assertion is correct but Reason is incorrect
  • Both Assertion and Reason are incorrect
Given figure shows which kind of arrangement of plastics ?
285119.JPG
  • Horizontal
  • Linear
  • Straight
  • Chain
Which of the following is biodegradable substance?
  • Cotton cloth
  • Thermosetting plastics
  • Thermoplastics
  • PVC pipes
The fibre developed in New York & London simultaneously is :
  • Nylon
  • Rayon
  • Teflon
  • Silk
Fibres obtained from plants and animals are called:
  • man made fibres
  • natural fibres
  • organic fibres
  • none of the above
Plastics are made up of:
  • Carbon
  • Hydrogen
  • Chlorine
  • All of these
Name the plastic whose sheets are used for packing liquids.
  • Polythene
  • Polycot
  • Polywool
  • Polyester
An example of natural fibre is :
  • Nylon
  • Rayon
  • Jute
  • Terylene
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 8 Chemistry Quiz Questions and Answers