question_answer

Which of the following pairs of plastic and their modes of formation are correctly matched?

1. Polythene ............. condensation polymerization

2. Polycarbonate............ addition polymerization

3. Polystyrene .............addition polymerization

4. Polyamide..........either by addition or by condensation polymerization.

Select the correct answer using the codes given below:

Codes:

A) 1 and 2            

B) 2 and 4

C) 1 and 4            

D) 3 and 4