Find the odd material (element vs alloy): Choose the one that is not a pure chemical element.
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AZinc
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BBronze
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CSilver
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DPlatinum
Answer
Correct Answer: Bronze
Explanation
Introduction / Context:Materials can be split into chemical elements versus mixtures/alloys. Zinc, silver, and platinum are elements from the periodic table; bronze is an alloy (commonly copper + tin), so it is compositionally distinct.
Given Data / Assumptions:
- Zinc (Zn): element.
- Silver (Ag): element.
- Platinum (Pt): element.
- Bronze: alloy (mixture), not a single element.
Concept / Approach:Check whether each name denotes a solitary atomic species (element) or a mixture. Alloys are engineered combinations with properties distinct from their constituents.
Step-by-Step Solution:
1) Tag Zn/Ag/Pt as elements.2) Tag Bronze as alloy.3) Therefore, Bronze is the odd option.Verification / Alternative check:Periodic table membership confirms the element status of Zn, Ag, Pt; “bronze” does not appear as an element symbol.
Why Other Options Are Wrong:They are pure elements and belong to the same class.
Common Pitfalls:Do not confuse “silver color” in alloys with the element silver; naming conventions differ.
Final Answer:Bronze