`{:("LIST - 1","LIST - 2"),("A) Phosphorite","1) "KNO_(3)),("B) Indian salt petre","2) "Ba(NO_(3))_(2)),("C) Fluoroapatite","3) "NaNO_(3)),("D) Chile salt petre","4) "3cA_(3)Ca(PO_(4))_(2).CaF_(2)),(,"5) "Ca_(3)(PO_(4))_(2)):}`
The correct match is

Options

A. `{:(A,B,C,D),(1,2,3,5):}`
B. `{:(A,B,C,D),(2,4,3,1):}`
C. `{:(A,B,C,D),(4,3,5,2):}`
D. `{:(A,B,C,D),(5,1,4,3):}`

Answer

To solve the matching question between List 1 and List 2, we need to identify the correct chemical formulas corresponding to the names given in List 1. Let's go through each item step by step.

### Step 1: Identify the formula for Phosphorite
- **Phosphorite** is a mineral that primarily consists of calcium phosphate. The chemical formula is:
\[ \text{Ca}_3(\text{PO}_4)_2 \]
- **Match**: A) Phosphorite → 5) \(\text{Ca}_3(\text{PO}_4)_2\)

### Step 2: Identify the formula for Indian salt petre
- **Indian salt petre**, also known as potassium nitrate, has the formula:
\[ \text{KNO}_3 \]
- **Match**: B) Indian salt petre → 1) \(\text{KNO}_3\)

### Step 3: Identify the formula for Fluoroapatite
- **Fluoroapatite** is a mineral that contains calcium, phosphate, and fluoride. Its chemical formula is:
\[ 3\text{Ca}_3(\text{PO}_4)_2 \cdot \text{CaF}_2 \]
- **Match**: C) Fluoroapatite → 4) \(3\text{Ca}_3(\text{PO}_4)_2 \cdot \text{CaF}_2\)

### Step 4: Identify the formula for Chile salt petre
- **Chile salt petre**, also known as sodium nitrate, has the formula:
\[ \text{NaNO}_3 \]
- **Match**: D) Chile salt petre → 3) \(\text{NaNO}_3\)

### Final Matching Results
- A) Phosphorite → 5) \(\text{Ca}_3(\text{PO}_4)_2\)
- B) Indian salt petre → 1) \(\text{KNO}_3\)
- C) Fluoroapatite → 4) \(3\text{Ca}_3(\text{PO}_4)_2 \cdot \text{CaF}_2\)
- D) Chile salt petre → 3) \(\text{NaNO}_3\)

### Conclusion
The correct matches are:
- A - 5
- B - 1
- C - 4
- D - 3