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15 questions
See the figure given below and select the correct statements regarding polymers.
1. Figure (X) shows structure of a monomer while figure (Y) shows structure of a polymer.
2. Small boxes in the structure represent monomers that are joined to give a polymer.
3. Figure (X) shows structure of a linear polymer while (Y) shows structure of a cross-linked polymer.
1 and 2 only
1 and 3 only
2 and 3 only
All are correct.
Read the given statements and mark the appropriate answer.
Statement 1: Fabric made from this polyester does not get wrinkled easily.
Statement 2: Polyester is a natural fibre.
Both statements 1 and 2 are true and
statement 2 is the correct explanation
of statement 1.
Both statements 1 and 2 are true
but statement 2 is not the correct
explanation of statement 1.
Both statements 1 and 2 are false.
Statement 1 is true and statement 2
is false.
Atul was climbing mountain and he wondered about the strength of rope in his hand which was stronger than a steel wire. This rope would have been made up of:
Polyester
Nylon
Rayon
Cotton
Nylon is obtained by
Treatment of wood pulp.
Mixing coal, air and water.
Solidifying water.
Mixing acids and bases.
Which of the following is not a blended fibre?
Terrycot
Terrylene
Polycotton
Terywool
The first synthetic fibre formed from a natural material wood pulp is
acrylic
rayon
nylon
polyester
A fibre which is as soft as wool is
rayon
nylon
polyester
acrylic
Necklace : bead :: polymer : ________.
Monomer
Dimer
Tetramer
Trimer
Main source of raw material for producing synthetic fibre is :
CNG
LPG
Refined oil.
Petroleum
Which one of the following can be semi-synthetic fibre?
Nylong
Rayon
Acrylic
PET
The long-chained polymers made by linking several ester units is called
polythene
polyester
polypropene
polystyrene
Which of the following will soak less water?
Nylon
Silk
Wool
Cotton
We should not wear synthetic clothes while cooking in the kitchen or in a laboratory.
True
False
A polymer is a chain of many small units joined together which are called ________.
From which part of sheep is wool made from?
Skin
Toes
Fleece
All the above
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