Which metal from the following can displace Zn from `ZnSO_4` solution?

Options

A. Lead
B. Copper
C. Magnesium
D. Silver

Explanation

To determine which metal can displace zinc from a zinc sulfate (ZnSO₄) solution, we will follow these steps:

### Step 1: Understand the Concept of Displacement Reactions
In a displacement reaction, a more reactive metal can displace a less reactive metal from its compound. In this case, we need to find a metal that can displace zinc from zinc sulfate.

**Hint:** Recall that the reactivity series of metals indicates their ability to displace other metals from compounds.

### Step 2: Identify the Reactivity Series
We need to refer to the reactivity series of metals. The order of reactivity from most reactive to least reactive is as follows:
1. Magnesium (Mg)
2. Zinc (Zn)
3. Lead (Pb)
4. Copper (Cu)
5. Silver (Ag)

**Hint:** Look for the position of zinc in the reactivity series to determine which metals are more reactive.

### Step 3: Compare Metals with Zinc
From the reactivity series, we can see that magnesium is above zinc, meaning it is more reactive. Therefore, magnesium can displace zinc from zinc sulfate.

**Hint:** Identify which metals in the list are above zinc in the reactivity series.

### Step 4: Write the Displacement Reaction
If magnesium reacts with zinc sulfate, the reaction can be represented as follows:
\[ \text{Mg} + \text{ZnSO}_4 \rightarrow \text{MgSO}_4 + \text{Zn} \]
In this reaction, magnesium displaces zinc, forming magnesium sulfate and releasing zinc.

**Hint:** Remember that the product of the reaction will be a new sulfate compound and the displaced metal.

### Conclusion
The metal that can displace zinc from zinc sulfate solution is **magnesium**.

**Final Answer:** Magnesium (Mg) can displace zinc from ZnSO₄ solution.