In the reaction, `H_(2)SO_(4)+PCl_(5)overset(Delta)to (X)+(Y)+HCl`, the products (X) and (Y) are :

Answer

To solve the given reaction \( H_2SO_4 + PCl_5 \overset{\Delta}{\rightarrow} (X) + (Y) + HCl \), we need to identify the products \( X \) and \( Y \).

### Step-by-Step Solution:

1. **Identify the Reactants**:
The reactants in this reaction are sulfuric acid (\( H_2SO_4 \)) and phosphorus pentachloride (\( PCl_5 \)).

2. **Understand the Reaction Conditions**:
The reaction is carried out under heating conditions (indicated by \( \Delta \)).

3. **Determine the Expected Products**:
When sulfuric acid reacts with phosphorus pentachloride, it typically results in the formation of phosphoryl chloride and sulfuryl chloride along with hydrochloric acid.

4. **Write the Products**:
- The first product \( X \) is **phosphoryl chloride** (\( POCl_3 \)).
- The second product \( Y \) is **sulfuryl chloride** (\( SO_2Cl_2 \)).
- Additionally, hydrochloric acid (\( HCl \)) is also produced.

5. **Balance the Reaction**:
The balanced reaction can be represented as:
\[ H_2SO_4 + PCl_5 \rightarrow POCl_3 + SO_2Cl_2 + HCl \]
This shows that one molecule of sulfuric acid reacts with one molecule of phosphorus pentachloride to yield one molecule of phosphoryl chloride, one molecule of sulfuryl chloride, and one molecule of hydrochloric acid.

### Final Answer:
- Product \( X \): Phosphoryl chloride (\( POCl_3 \))
- Product \( Y \): Sulfuryl chloride (\( SO_2Cl_2 \))

---