Which of the following metals can displace the other two metals from their salt solutions?
Zinc , iron , copper

Explanation

To determine which of the metals (Zinc, Iron, Copper) can displace the other two metals from their salt solutions, we need to analyze their reactivities based on the reactivity series of metals. Here’s a step-by-step solution:

### Step 1: Understand the Reactivity Series
The reactivity series is a list of metals arranged in order of decreasing reactivity. The more reactive a metal is, the more likely it is to displace another metal from its salt solution.

### Step 2: Identify the Reactivity of Each Metal
- **Zinc (Zn)**: Highly reactive.
- **Iron (Fe)**: Moderately reactive.
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