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

Step-by-step solution

A thermosetting polymer which is also known as a thermoset or thermosetting plastic is a polymer consisting of cross-linked structure or heavily branched molecules. 1 Neoprene is an elastic polymer. 2 PVC is a thermoplastic 3 Nylon - 6 ,   6 is a fibre 4 Bakelite is a thermosetting polymer