When `KNO_(3)` reacts with conc. `H_(2)SO_(4)` products formed is/are:

Options

A. `HNO_(3)`
B. `K_(2)SO_(4)`
C. `HNO_(2)`
D. `N_(2)O`

Answer

To solve the question regarding the reaction between potassium nitrate (KNO₃) and concentrated sulfuric acid (H₂SO₄), we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are potassium nitrate (KNO₃) and concentrated sulfuric acid (H₂SO₄).

### Step 2: Write the Reaction
When KNO₃ reacts with concentrated H₂SO₄, the reaction can be represented as follows:
\[ \text{KNO}_3 + \text{H}_2\text{SO}_4 \rightarrow \text{HNO}_3 + \text{K}_2\text{SO}_4 \]

### Step 3: Identify the Products
From the reaction, we can see that the products formed are:
1. Nitric acid (HNO₃)
2. Potassium sulfate (K₂SO₄)

### Step 4: Conclusion
Thus, the products formed when KNO₃ reacts with concentrated H₂SO₄ are nitric acid (HNO₃) and potassium sulfate (K₂SO₄).

### Final Answer
The products formed are:
- HNO₃ (Nitric acid)
- K₂SO₄ (Potassium sulfate)