Which major property made bronze more useful than copper for some objects?
Answer and explanation
Correct answer: It was generally harder than copper
The governing concept is alloying: bronze is mainly copper mixed with tin. This addition generally increased hardness and resistance to wear compared with relatively soft pure copper, so bronze was useful for tools, weapons and other durable objects. Transparency, floating and absence of metal are irrelevant or impossible claims. Therefore option A is correct because it identifies the material property that improved practical performance.
Frequently asked questions
What is the correct answer to this question?
It was generally harder than copper
Why is this the correct answer?
The governing concept is alloying: bronze is mainly copper mixed with tin. This addition generally increased hardness and resistance to wear compared with relatively soft pure copper, so bronze was useful for tools, weapons and other durable objects. Transparency, floating and absence of metal are irrelevant or impossible claims. Therefore option A is correct because it identifies the material property that improved practical performance.
Which subject and chapter does this question cover?
This is a Class 12 History question. Chapter: Bricks, Beads and Bones. Topic: craft production.
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