WorksheetsSynthetic fibres and plastics
Total questions: 10
Worksheet time: 10mins
What of the following is used for making stockings and parachutes?
Bakelite
Wool
Nylon
Cotton
the plastic which cannot be recycled
jute
rayon
petrochemicals
bakelite
Polythene and PVC are examples of
Bio degradable substance
Thermosetting plastics
Thermoplastics
Rayon
The 4R principle is
Reduce, Reuse, Recycle, Recover
Remember, Reduce, Recycle, Rejoice
Repeat, Recycle, Rejoice, Reduce
None of these
The plastics which do not remould again on heating are called:
Thermosetting plastics
Thermoplastics
Both of these
None of these
The material which is not decomposed by natural process is _________
Non biodegradable material
Bio degradable material
Left over food
Wood
Identify ALL the advantages of plastics.
Combustible
Light weight
Produce toxic fumes
Non-renewable
Corrosion resistant
Identify ALL the disadvantages of plastics.
Combustible
Light weight
Produce toxic fumes
Non-renewable
Corrosion resistant
Non-biodegradable plastic is made from:
Latex.
Petroleum.
Casein.
Carbon.
