Which one among the following is a thermosetting plastic?
PVC
Polyethene
Bakelite
All of these
A
Polyethene
B
PVC
C
Bakelite
D
All of these
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Solution
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Plastics that have a cross-linked structure, generally belong to the category of thermosetting plastics. These plastics once moulded, can
not be softened by heating. Bakelite is a thermosetting plastic.
On the other hand, plastics that have a linear structure get deformed easily on heating and can be bent easily. These types of plastics are known as thermoplastics. PVC and polyethene belong to the class of thermoplastics. Therefore, option C is correct.
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