Which of the following is not an alloy of copper ?
Correct answer: C. Pewter metal
- A. Muntz metal
- B. Admiralty gun metal
- C. Pewter metal
- D. German silver
Explanation
Muntz metal, admiralty gun metal and German silver are copper-based alloys. Pewter is primarily a tin-based alloy containing antimony and sometimes small amounts of copper, so it is not classified as a copper alloy.
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