JEE Main Chemistry question

Not in JEE Main or NEET syllabus

In case of condensation polymerization 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 polymers rises throughout the reaction.Correct
(D)Have no specific relation to their molecular weight.

Answer: (C)

Solution

Condensation (step-growth) polymerization proceeds by monomers first forming dimers, dimers reacting further to form tetramers/oligomers, and so on, so that the average molecular weight of the growing polymer chains

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Question ID VK-151337