A) \[Cu,\,\,Ag,\,\,Au\]
B) \[Ru,\,\,Rh,\,\,Pd\]
C) \[Fe,\,\,Co,\,\,Ni\]
D) \[Os,\,\,Ir,\,\,Pt\]
Correct Answer: A
Solution :
\[Cu,\,\,Ag,\,\,Au\] group of elements are called coinage metals as these are used in minting coins.
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