Question

Which of the following is called coinage metals?

• A. Fe, Co and Ni
• B. Cu and Zn
• C. Cu, Ag and Au
• D. Au and Pt

Hint:

Remember: Group 11 $=$ coinage metals $\rightarrow$ Cu, Ag, Au — prized for low reactivity and high malleability.

Answer 1

The Correct Option is C

Step 1: Definition.
Coinage metals are the Group 11 elements historically used to mint coins due to their malleability, luster, and resistance to corrosion.
Step 2: Identify the group.
Group 11 elements are copper (Cu), silver (Ag), and gold (Au).
Step 3: Analyze options and conclude.
Options (A), (B), and (D) either include non–Group 11 metals or omit one of the coinage metals; only option (C) lists Cu, Ag, and Au together.