Which of the following statements is true for the electerochemical Daniel cell?

Options

A. Electrons flow from copper electrode to zinc electrode.
B. Current flows from zinc electrode to copper electrode.
C. Cations move toward copper electrode
D. Cations move toward zinc electrode.

Explanation

To determine which statement is true for the electrochemical Daniel cell, let's analyze the information step by step.

### Step 1: Understanding the Components of the Daniel Cell
The Daniel cell consists of two electrodes:
- Anode: Zinc (Zn)
- Cathode: Copper (Cu)

### Step 2: Direction of Electron Flow
In an electrochemical cell, electrons flow from the anode to the cathode.
- In the Daniel cell, electrons flow from the zinc electrode (anode) to the copper electrode (cathode).

### Step 3: Current Flow Direction
Current is defined as the flow of positive charge. In a Daniel cell:
- Current flows from the cathode (copper) to the anode (zinc).

### Step 4: Movement of Ions
In the Daniel cell:
- Cations (positive ions) move towards the cathode (copper electrode).
- Anions (negative ions) move towards the anode (zinc electrode).

### Step 5: Evaluating the Statements
Now, let's evaluate the provided statements:
1. **Electrons flow from copper electrode to zinc electrode.**
- This statement is **false**. Electrons flow from zinc to copper.

2. **Current flows from zinc electrode to copper electrode.**
- This statement is **false**. Current flows from copper to zinc.

3. **Cations move towards copper electrode.**
- This statement is **true**. Cations (like Cu²⁺) move towards the copper cathode.

4. **Anions move towards zinc electrode.**
- This statement is **false**. Anions move towards the zinc anode.

### Conclusion
The correct statement regarding the electrochemical Daniel cell is that **cations move towards the copper electrode**.