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Bronze, an alloy resistant to sun and rain, is made from which composition?
A70% copper and 30% zinc
B74% iron and 18% chromium
C90% iron and 10% carbon
D90% copper and 10% tin
Answer & Solution
Correct answer: D. 90% copper and 10% tin
1. Alloys are made to reduce corrosion of metals.
2. Bronze is formed from 90% copper and 10% tin.
3. Bronze statues are not affected by sun and rain.
4. The 74% iron and 18% chromium composition describes stainless steel, not bronze, so that option is wrong.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.117_
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