Question
Download Solution PDFWhich one of the following is the correct arrangement of metals in the decreasing order of their reactivity?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Sodium, Iron, Copper, Silver.
Key Points
- Sodium (Na) is the most reactive metal in the given list. It readily loses its single valence electron to react with many elements, including water and oxygen.
- Iron (Fe) is less reactive than sodium but more reactive than copper and silver. It reacts with water slowly and with acids more readily.
- Copper (Cu) is less reactive than iron. It doesn't react with water at room temperature but can react with acids under certain conditions.
- Silver (Ag) is the least reactive metal among the four. It's highly resistant to corrosion and doesn't react with water or most acids.
Therefore, the order from most reactive to least reactive is: Sodium > Iron > Copper > Silver
Additional Information
- The Reactivity series of metals refers to the arrangement of metals in the descending order of their reactivities.
- Features of the Reactivity series:
- The metals at the top of the reactivity series are powerful reducing agents since they are easily oxidized and get corroded very easily.
- The reducing ability of the metals grows weaker while traversing down the series.
- The electro positivity of the elements also reduces while moving down the reactivity series of metals.
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