Which one will not displace copper from copper sulphate?

Options

A. Iron
B. Zinc
C. Aluminium
D. Silver

Explanation

To determine which metal will not displace copper from copper sulfate, we need to understand the concept of displacement reactions and the reactivity series of metals. Here’s a step-by-step solution:

### Step 1: Understand Displacement Reactions
Displacement reactions occur when a more reactive metal displaces a less reactive metal from its compound (salt). In this case, we are looking at copper sulfate (CuSO₄) and determining which metal can or cannot displace copper from it.

### Step 2: Refer to the Reactivity Series
The reactivity series of metals is a list that ranks metals from most reactive to least reactive. The relevant part of the reactivity series for this question is:
- Potassium
- Sodium
- Calcium
- Magnesium
- Aluminum
- Carbon
- Zinc
- Iron
- Tin
- Lead
- Hydrogen
- Copper
- Silver
- Gold
- Platinum

### Step 3: Analyze the Given Metals
Now, we will analyze each of the metals provided in the options:
1. **Iron (Fe)**: Iron is above copper in the reactivity series, meaning it is more reactive. Therefore, iron can displace copper from copper sulfate.
2. **Zinc (Zn)**: Zinc is also above copper in the reactivity series and is more reactive than copper. Thus, zinc can displace copper from copper sulfate.
3. **Aluminum (Al)**: Aluminum is even higher in the reactivity series than copper, indicating it is more reactive. Hence, aluminum can displace copper from copper sulfate.
4. **Silver (Ag)**: Silver is below copper in the reactivity series, indicating it is less reactive. Therefore, silver cannot displace copper from copper sulfate.

### Step 4: Conclusion
Based on the analysis, the metal that will not displace copper from copper sulfate is **silver**.

### Final Answer:
**Silver will not displace copper from copper sulfate.**

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