alleryThe repeating structural unit in a polymer is called:
AAtom
BInitiator
CMonomer (the building block that repeats)
DCatalyst
Answer & Solution
Correct answer: C. Monomer (the building block that repeats)
**Monomer:** the small molecule that polymerizes.
The repeat unit in the chain often retains the monomer's backbone atoms.
e.g., n CH₂=CH₂ → -(CH₂-CH₂)-_n (polyethylene).
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