What was the main technical advantage of adding tin to copper to make bronze?
Answer and explanation
Correct answer: The metal became harder and more resistant to wear
Bronze is an alloy made by combining copper with tin. Compared with pure copper, it is generally harder and more resistant to wear, which improves the durability of tools, weapons and other objects. Thus option A is correct. Bronze is not completely corrosion-proof, and adding tin does not greatly raise the melting point; it commonly lowers it, so options C and D are wrong. Option B reverses the usual effect on hardness.
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What is the correct answer to this question?
The metal became harder and more resistant to wear
Why is this the correct answer?
Bronze is an alloy made by combining copper with tin. Compared with pure copper, it is generally harder and more resistant to wear, which improves the durability of tools, weapons and other objects. Thus option A is correct. Bronze is not completely corrosion-proof, and adding tin does not greatly raise the melting point; it commonly lowers it, so options C and D are wrong. Option B reverses the usual effect on hardness.
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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