Which of the following sets is of coinage metals ?
A
Cu,Ag,Au
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B
Zn,Cd,Hg
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C
Au,Ag,Zn
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D
Li,Na,K
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Solution
The correct option is DCu,Ag,Au
Cu,Ag,Au
The coinage metal comprise, at a minimum, those metallic chemical elements which have historically been used as components in alloys used to mint coins.