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Select the option that does NOT belong to the same category as the others: Copper, Gold, Silver, Plastic
Copper
Gold
Silver
Plastic
Plastic
Identify the chemical property of the items; notice that three are metallic elements, while one is a synthetic polymer.
Identify the chemical property of the items; notice that three are metallic elements, while one is a synthetic polymer.
Analyze the nature of Copper, Gold, and Silver
Copper, Gold, and Silver are naturally occurring metallic elements found on the periodic table. They are excellent conductors of heat and electricity.
Analyze the nature of Plastic
Plastic is a synthetic or semi-synthetic organic compound (a polymer). It is a non-metal and an insulator, making it chemically and physically distinct from the other three options.
A: Copper is a metal. B: Gold is a metal. C: Silver is a metal.
D is correct because Copper, Gold, and Silver are naturally occurring metallic elements, whereas Plastic is a synthetic polymer and a non-metal.
In classification questions involving materials, always check for physical states, conductivity, or natural vs. synthetic origin if the items seem related.
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