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Which outcome occurs when tensile stress exceeds a polymer's limit?

A)Chain scission yields smaller molecules
B)Crystallinity causes increased tensile strength
C)Increased hydrogen bonding promotes stiffness
D)Van der Waals forces enhance elasticity

💡 Explanation

Polymer failure results from chains breaking when stress surpasses the limit; chain scission then yields shorter molecules because the force overcomes covalent bonds. Therefore, the polymer degrades, rather than increasing in strength or elasticity, which rely on intermolecular forces under lower stress.

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