Which one of the following is an example of a thermosetting polymer?

2 2014 AIPMT PolymersClassification of Polymers Easy
Which one of the following is an example of a thermosetting polymer?
A $\left(-CH_2-C(Cl)=CH-CH_2-\right)_n$
B $\left(-CH_2-CH(Cl)-\right)_n$
C $\left(-NH-(CH_2)_6-NH-CO-(CH_2)_4-CO-\right)_n$
D -

Detailed Solution

Thermosetting polymers are cross-linked or heavily branched molecules, which on heating undergo extensive cross-linking in moulds and become infusible.
The most common example is bakelite (phenol–formaldehyde polymer).

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