Question

which is a characteristic of condensation polymerization? monomers are generally alkenes. the reaction rarely produces a product. each monomer has more than one functional group. the polymer contains all the atoms in the monomer units.

Explanation:

In condensation polymerization, monomers react with each other to form polymers, with the elimination of a small - molecule by - product (such as water). For this to occur, each monomer must have more than one functional group so that multiple reaction sites are available for the formation of the polymer backbone. Monomers in addition polymerization are generally alkenes. Condensation polymerization does produce a product. And since a small molecule is eliminated, the polymer does not contain all the atoms in the monomer units.

Answer:

Each monomer has more than one functional group.