Iron will displace which one from its compound?

Options

A. Zn
B. Al
C. Cu
D. Mg

Explanation

To determine which element iron can displace from its compounds, we need to refer to the activity series of metals. The activity series ranks metals based on their ability to displace other metals from compounds in solution. Here's the step-by-step solution:

### Step 1: Understand the Activity Series
The activity series is a list of metals arranged in order of decreasing reactivity. Metals higher in the series can displace those lower in the series from their compounds.

### Step 2: Identify the Position of Iron
In the activity series, iron is positioned below magnesium, aluminum, and zinc, but above copper. This means that iron can displace metals that are lower than it in the series.

### Step 3: Analyze the Given Options
The options provided typically include metals like magnesium, aluminum, zinc, and copper. Since iron is below magnesium, aluminum, and zinc in the series, it cannot displace these metals from their compounds.

### Step 4: Determine Which Metal Iron Can Displace
Since iron is above copper in the activity series, it can displace copper from its compounds. Therefore, the only metal that iron can displace from its compound is copper.

### Final Answer
Iron can displace **copper** from its compound.