Which of them are coinage metals
Correct answer: C. Cu, Ag, Au
- A. Cu, Pb ,Ni
- B. Mn , Cr, Fe
- C. Cu, Ag, Au
- D. None
Explanation
Coinage metals refer to a group of metals that have been historically used to mint coins. The coinage metals are copper (Cu), silver (Ag), and gold (Au). These metals are valued not only for their monetary worth but also for their properties like durability and resistance to corrosion.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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