Question 1
Question detail
Give two examples of everyday alloys and explain one property that each alloy improves compared with its constituent pure metals.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Using materials
Question
Give two examples of everyday alloys and explain one property that each alloy improves compared with its constituent pure metals.
Answer
Bronze, an alloy of copper and tin, is harder and more corrosion‑resistant than pure copper, making it useful for bearings and sculptures. Brass, an alloy of copper and zinc, has a lower melting point and better castability than pure copper, allowing it to be used for fittings and musical instruments.
Explanation
The answer shows recall of specific alloys and analysis of how alloying changes properties, illustrating the concept that everyday metals are alloys.
Common mistake
Misunderstanding Alloys
Students often think that all metals are pure and do not recognize that most metals used in everyday life are actually alloys.
Emphasize that an alloy is a mixture of two or more elements, where at least one is a metal, and that most metals in common use are alloys designed to enhance properties such as strength and resistance.
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