WorksheetsSynthetic Fibres and plastics
Total questions: 16
Worksheet time: 8mins
A chain of small chemical units combined to form a large single unit is called ____
a) Polymer
b) Poly
Which of the following have more tensile strength ?
silk
nylon
rayon
spandex
_________ is the first fully synthetic fibre.
Acrylic
Polyester
Nylon
Rayon
Fibres of _______ resemble that of silk and hence, it is popularly known as ‘artificial silk’.
acrylic
polyester
rayon
nylon
Necklace : bead :: polymer : ________.
Monomer
Dimer
Tetramer
Trimer
Main source of raw material for producing synthetic fibre is :
CNG
LPG
Refined oil.
Petroleum
A large single unit combined by many small units
Polyester
Polymer
Terrycot
Polywool
Where was silk fibre discovered?
France
Germany
India
China
polymers are made up of small units called
layers
molecules
cells
monomers
______________ are the chemicals which give fruits their smell.
fructose
lactose
esters
PET is a _________
(a) polyester
b) polyamer
(c) nylon
(d) thermosetting polymer
Polycot is made by mixing two types of fibres namely
Silk + Cotton
Polythene + cotton
Silk + Polyester
Polyester + Cotton
_____________ is an example of natural polymer
Rayon
Cellulose
Nylon
All of the above
Polywool is a mixture of polyester and
cotton
silk
wool
rayon
We wear sweaters and use shawls or blankets in the winter. Many of these are actually not made from natural wool, though they appear to resemble wool. These are prepared from another type of synthetic fibre called
acrylic
nylon
polyester
rayon
