Match List I with List II and select the correct answer using the code
given below the lists `:`
`{:("List-1",,,"List"-II),((a)"Argentite",,,"(1)Halide ore of magnesium"),((b) "Cuprite ",,,(2)"Carbonate ore of iron"),((c )"Siderite",,,(3)"Oxide ore of copper"),((d)"Carmelite",,,(4)"Sulphide ore of silver"):}`
Code `:`

Options

A. a-4, b-3, c-2, d-1
B. a-1, b-2, c-3, d-4
C. a-2, b-3, c-3, d-1
D. a-3, b-4, c-1, d-2

Explanation

To solve the question of matching List I with List II, we need to identify the correct ore types based on their chemical formulas and characteristics. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the ores and their chemical formulas
1. **Argentite**: The chemical formula for argentite is Ag₂S. This indicates that it is a sulfide ore of silver.
2. **Cuprite**: The chemical formula for cuprite is Cu₂O. This indicates that it is an oxide ore of copper.
3. **Siderite**: The chemical formula for siderite is FeCO₃. This indicates that it is a carbonate ore of iron.
4. **Carmelite**: The chemical formula for carmelite is KCl·MgCl₂·6H₂O. This indicates that it is a halide ore of magnesium.

### Step 2: Match the ores with their descriptions
- **Argentite (Ag₂S)**: This is a sulfide ore of silver. Therefore, it matches with (4) in List II.
- **Cuprite (Cu₂O)**: This is an oxide ore of copper. Therefore, it matches with (3) in List II.
- **Siderite (FeCO₃)**: This is a carbonate ore of iron. Therefore, it matches with (2) in List II.
- **Carmelite (KCl·MgCl₂·6H₂O)**: This is a halide ore of magnesium. Therefore, it matches with (1) in List II.

### Step 3: Compile the matches
Based on the analysis:
- (a) Argentite → (4) Sulfide ore of silver
- (b) Cuprite → (3) Oxide ore of copper
- (c) Siderite → (2) Carbonate ore of iron
- (d) Carmelite → (1) Halide ore of magnesium

### Step 4: Write the final answer in code format
The correct matching can be summarized as:
- a → 4
- b → 3
- c → 2
- d → 1

Thus, the code is: **4, 3, 2, 1**.