alleryPlastics are composed primarily of which kind of substances?
APolymers
BMinerals
CAlloys
DSalts
Answer & Solution
Correct answer: A. Polymers
1. Plastics are synthetic or semisynthetic materials.
2. They are composed primarily of polymers.
3. Alloys are mixtures of metals and salts are ionic compounds, so neither describes plastics.
_Source: Wikipedia, Plastic, Lead section_
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