The metal extracted by electrolysis of its fused salt is

Options

A. Iron
B. Lead
C. Sodium
D. Copper

Answer

To solve the question regarding the metal extracted by electrolysis of its fused salt, we will follow these steps:

### Step 1: Understand the Process of Electrolysis
Electrolysis is a method used to extract metals from their ores by passing an electric current through a molten or dissolved ionic compound. This process involves the movement of ions towards electrodes where reduction and oxidation reactions occur.

**Hint:** Remember that electrolysis involves the decomposition of a compound into its elements through the application of electricity.

### Step 2: Identify the Fused Salt
The question specifically asks about the electrolysis of fused salts. Common fused salts include sodium chloride (NaCl), potassium chloride (KCl), and others. We need to focus on the fused salt of the metals mentioned in the options.

**Hint:** Consider the common fused salts of metals and their extraction processes.

### Step 3: Analyze the Options
The options given are:
1. Iron
2. Lead
3. Sodium
4. (Another option not specified)

We need to determine which of these metals can be extracted through the electrolysis of their fused salts.

**Hint:** Recall the common metals that are extracted through electrolysis and their corresponding fused salts.

### Step 4: Evaluate Each Metal
- **Iron:** Iron is typically extracted from its ores using carbon reduction methods rather than electrolysis.
- **Lead:** Lead can be extracted from its ores, but it is not commonly extracted through the electrolysis of its fused salts.
- **Sodium:** Sodium is extracted through the electrolysis of molten sodium chloride (NaCl). This is a well-known method for producing sodium metal.

**Hint:** Focus on the electrolysis reactions for each metal to see which one is applicable.

### Step 5: Confirm the Correct Answer
From the analysis, sodium is the only metal among the options that is extracted by the electrolysis of its fused salt (NaCl). The electrolysis process involves the reduction of sodium ions at the cathode and the oxidation of chloride ions at the anode.

**Hint:** Remember the specific reactions that occur during the electrolysis of NaCl to reinforce your understanding.

### Conclusion
The metal extracted by electrolysis of its fused salt is **Sodium**.

**Final Answer:** Sodium (Option 3).