Metals (coinage group): Which of the following pairs does not contain any coinage metal? Coinage metals are Cu, Ag and Au in Group 11 of the periodic table. Choose the pair with zero coinage metals.
General Knowledge
General Science
Difficulty: Easy
Choose an option
Answer
Correct Answer: Zinc and tin
Explanation
Given data
- Coinage metals: copper (Cu), silver (Ag), gold (Au).
Concept/ApproachPairs containing any of Cu/Ag/Au include coinage metals and are therefore not correct. A pair of non-coinage metals (e.g., Zn and Sn) contains none.
ReasoningCheck each pair:• Silver & gold → both coinage (reject).• Copper & silver → both coinage (reject).• Copper & gold → both coinage (reject).• Zinc & tin → neither is coinage (accept).
Final AnswerZinc and tin