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Alloys containing copper, tin, and zinc are known as ______

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Alloys containing copper, tin, and zinc are known as ______

(a) Gunmetal

(b) Bronze

(c) Brass

(d) Cupro-nickel

I have been asked this question during an online interview.

The query is from Copper and its Alloys in section Non Ferrous Materials of Engineering Material & Metallurgy

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The correct option is (a) Gunmetal

The best I can explain: Gunmetal is an alloy of copper containing tin and zinc. They are used to make pumps, valves, marine castings etc.

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