# Which of the following is not an example for addition polymer?

$\begin {array} {1 1} (a)\;Polystyrene & \quad (b)\;Polyethylene \\ (c)\;Polypropylene & \quad (d)\;Terylene \end {array}$

Terylene is a type of condensation polymer formed by heating a mixture of Ethylene glycol and terepthalic acid
Ans : (d)