Question 40
Metals and their CompoundsA common characteristics of copper and silver in their usage as coinage metals is that they
- A.have high metallic lustre
- B.are not easily oxidized
- C.are easily oxidized
- D.are not easily reduced.
Show the answer and explanation
Answer: B (are not easily oxidized)
Explanation
Coins must last a long time, and copper and silver are low in the activity series, so they do not corrode (get oxidized) easily.