Unit Test — Unit test

Question 8 • EO Chemistry 7320C

How is addition polymerization different from condensation polymerization?

Answer

During condensation polymerization, all the atoms in the monomer units are retained in the polymer; addition polymerization results in the loss of a small molecule, such as water.

During addition polymerization, all the atoms in the monomer units are retained in the polymer; condensation polymerization results in the loss of a small molecule, such as water.

During addition polymerization, the chain grows in one direction only; during condensation polymerization, the chain can grow in multiple directions.

During condensation polymerization, the chain grows in one direction only; during addition polymerization, the chain can grow in multiple directions.

Explanation

In addition polymerization, monomers join without eliminating any atoms, so all the atoms from the monomers are retained in the polymer. In condensation polymerization, bonds form while a small molecule—often water—is released. Therefore, choice B correctly describes the difference.

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