Essential Chemistry for IGCSE - Polymers (Section 2 - No. 16)

Which of the following statements about polymers is correct?

All polymers are biodegradable.

Addition polymers do not release any other substances.

Condensation polymers use the same building blocks as addition polymers.

Monomers of addition polymers are connected via amide groups

In addition polymerization reactions, no other substance is formed.