Choose the correct statement from the following which is related to the electrochemical series:

Options

A. Electrochemical series is not the arrangement of metals and ions according to their reactivity.
B. The metal ions at the top of the elelctochemical series are highly electronegative
C. Strongly electropositive metals can displace weakly electropositive metals from their salt solution
D. All metals above hydrogen in the series do not displace hydrogen from dilute acids.

Answer

To solve the question regarding the correct statement related to the electrochemical series, we will analyze each of the provided statements step by step.

### Step-by-step Solution:

1. **Understanding the Electrochemical Series**:
- The electrochemical series is a list of elements arranged in order of their standard electrode potentials. It indicates the tendency of a species to be reduced (gain electrons) or oxidized (lose electrons).
- Metals at the top of the series have more negative electrode potentials, indicating they are more likely to be oxidized and thus are stronger reducing agents.

2. **Analyzing Each Statement**:
- **Statement 1**: "The electrochemical series is not the arrangement of metals and ions according to their reactivity."
- This statement is incorrect. The electrochemical series is indeed an arrangement based on reactivity, specifically in terms of their electrode potentials.

- **Statement 2**: "The metal ions at the top of the electrochemical series are highly electronegative."
- This statement is also incorrect. The metals at the top of the series are highly electropositive, not electronegative. They have a tendency to lose electrons rather than gain them.

- **Statement 3**: "Strongly electropositive metals can displace weakly electropositive metals from their salt solution."
- This statement is correct. A more electropositive metal can displace a less electropositive metal from its salt solution due to its higher tendency to oxidize.

- **Statement 4**: "All metals above hydrogen in the series do not displace hydrogen from dilute acid."
- This statement is incorrect. Some metals above hydrogen can indeed displace hydrogen from dilute acids if they have a sufficiently negative electrode potential.

3. **Conclusion**:
- After analyzing all four statements, the only correct statement is **Statement 3**: "Strongly electropositive metals can displace weakly electropositive metals from their salt solution."

### Final Answer:
The correct statement related to the electrochemical series is **Statement 3**.

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