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Muntz metal consists of ___________ copper and __________ zinc.

(a) 75%, 25%

(b) 25%, 75%

(c) 50%, 50%

(d) 60%, 40%

I have been asked this question in exam.

This intriguing question comes from Properties of Copper and its Alloys-1 topic in portion Copper and its Alloys of Aerospace Materials & Processes

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Correct answer is (d) 60%, 40%

The best I can explain: Muntz metal is a type of brass. It consists of both copper and zinc. Composition wise, there is 60% copper and 40% zinc. It has several distinct properties which vary depending on if it is heat-treated or not.

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