In a galvanic cell, which of the following statement is incorrect?

Options

A. anode is negatively charged
B. cathode is positively charged
C. reduction occurs at anode
D. standard e.g. of the cells is always zero.

Answer

To determine which statement about a galvanic cell is incorrect, let's analyze each of the provided statements step by step.

### Step 1: Understand the roles of anode and cathode in a galvanic cell.
- In a galvanic cell, the anode is the electrode where oxidation occurs, and the cathode is where reduction takes place.

### Step 2: Analyze the first statement: "Anode is negatively charged."
- **Correctness**: This statement is true. In a galvanic cell, the anode is negatively charged because it is the site of oxidation, where electrons are released.

### Step 3: Analyze the second statement: "Cathode is positively charged."
- **Correctness**: This statement is also true. The cathode is positively charged because it is the site of reduction, where it gains electrons from the anode.

### Step 4: Analyze the third statement: "Reduction occurs at anode."
- **Correctness**: This statement is false. Reduction occurs at the cathode, not at the anode. Therefore, this statement is incorrect.

### Step 5: Analyze the fourth statement: "Standard E° of the cell is always zero."
- **Correctness**: This statement is true. The standard electrode potential (E°) of the standard hydrogen electrode is defined as zero, and it serves as a reference point for other electrodes.

### Conclusion:
The incorrect statement among the options provided is: **"Reduction occurs at anode."**

### Final Answer:
The incorrect statement is: **"Reduction occurs at anode."**

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