Match List I with List II and select the correct answer using the code given below the lists `:`
`{:(,"List-1",,,,"List"-II),(I,"Bauxite",,,(a),"Lead"),(II, "Carnallite ",,,(b),"Copper"),(III, "Malachite",,,(c),"Magnesium"),(IV,"Galena",,,(d),"Hall Process"):}`
Code `:`

Options

A. I a , II c , III d , IV b
B. I c , II d , III a , IV b
C. I d , II b , III c , IV a
D. I d , II c , III b , IV a

Explanation

To solve the problem of matching List I with List II, we need to identify the ores in List I and their corresponding metals or processes in List II. Here’s a step-by-step breakdown:

### Step 1: Identify the Ores and Their Formulas
1. **Bauxite**: The chemical formula for bauxite is Al₂O₃. It is the primary ore of aluminum.
2. **Carnallite**: The formula for carnallite is KCl·MgCl₂·6H₂O. It is a source of magnesium.
3. **Malachite**: The formula for malachite is CuCO₃·Cu(OH)₂. It is an ore of copper.
4. **Galena**: The formula for galena is PbS. It is the primary ore of lead.

### Step 2: Match Each Ore to Its Corresponding Metal or Process
1. **Bauxite (Al₂O₃)**: This is processed using the Hall-Héroult process to produce aluminum. Thus, it matches with (d) Hall Process.
2. **Carnallite (KCl·MgCl₂·6H₂O)**: This is a source of magnesium. Therefore, it matches with (c) Magnesium.
3. **Malachite (CuCO₃·Cu(OH)₂)**: This is an ore of copper. Hence, it matches with (b) Copper.
4. **Galena (PbS)**: This is an ore of lead. So, it matches with (a) Lead.

### Step 3: Compile the Matches
- Bauxite → (d) Hall Process
- Carnallite → (c) Magnesium
- Malachite → (b) Copper
- Galena → (a) Lead

### Step 4: Write Down the Final Matches
Now, we can summarize the matches as follows:
- I → d
- II → c
- III → b
- IV → a

### Step 5: Select the Correct Code
Based on the matches:
- The correct code is: **(d, c, b, a)**

### Final Answer
The correct answer is: **(d, c, b, a)**

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