Question

In case of condensation of polymers

• A. high molecular weight polymers are formed all at once
• B. lower molecular weight polymers are formed all at once
• C. molecular weight of polymer rises throughout the reaction
• D. have no Specific relation to their molecular weight

Answer 1

Answer: (C)

The process of condensation polymerization takes place in the following manner.
$A+B\stackrel{\text{ Condense }}{\to }\underset{\text{ dimer }}{A-B}$
$A-B+A\stackrel{\text{Condense}}{\to }A-B-A$
$A-B-A+B\to A-B-A-B$
In this process no initiator is required and it is also called step growth polymerization.