To solve the question, we need to analyze the given chemical reactions and identify the products W, X, and Y, along with their uses.
### Step-by-Step Solution:
1. **Analyzing the First Reaction:**
\[
\text{NaCl} + \text{H}_2\text{O} + \text{CO}_2 + \text{NH}_3 \rightarrow \text{NH}_4\text{Cl} + W
\]
- Here, we have sodium chloride (NaCl), water (H₂O), carbon dioxide (CO₂), and ammonia (NH₃) reacting to form ammonium chloride (NH₄Cl) and another product W.
- The product W can be identified as sodium carbonate (Na₂CO₃) because the reaction involves the combination of NaCl and CO₂ in the presence of NH₃ and water.
**Hint:** Look for common products formed when sodium compounds react with carbon dioxide and ammonia.
2. **Analyzing the Second Reaction:**
\[
\text{Ca(OH)}_2 + \text{Cl}_2 \rightarrow X + \text{H}_2\text{O}
\]
- Calcium hydroxide (Ca(OH)₂) reacts with chlorine (Cl₂) to produce a product X and water.
- The product X is calcium oxychloride (Ca(OCl)₂), which is commonly known as bleaching powder.
**Hint:** Chlorine reacts with calcium hydroxide to produce bleaching agents.
3. **Analyzing the Third Reaction:**
\[
2\text{NaCl} + 2\text{H}_2\text{O} \rightarrow Y + \text{Cl}_2 + \text{H}_2
\]
- In this reaction, sodium chloride (NaCl) and water (H₂O) produce chlorine gas (Cl₂) and hydrogen gas (H₂), along with another product Y.
- The product Y is sodium hydroxide (NaOH), which is a strong base.
**Hint:** Sodium chloride and water can produce sodium hydroxide through electrolysis.
4. **Identifying Uses of Products:**
- **W (Sodium Carbonate, Na₂CO₃):** Used as an ingredient in antacids to neutralize stomach acidity.
- **X (Calcium Oxychloride, Ca(OCl)₂):** Used as a bleaching agent in various applications.
- **Y (Sodium Hydroxide, NaOH):** Used in paper making and various industrial processes.
### Conclusion:
The correct uses of products W, X, and Y are:
- W (Sodium Carbonate) - Used in antacids.
- X (Calcium Oxychloride) - Used as a bleaching agent.
- Y (Sodium Hydroxide) - Used in paper making.
Thus, the answer is that option 2 is correct, as it matches the uses of the products derived from the reactions.