The following two reactions of `HNO_(3)` with Zn are given as (equations are not balanced )
Zn +conc. `HNO_(3) to Zn(NO_(3))_(2)+X+H_(2)O......(i)`
Zn+ dilute. `HNO_(3) to Zn(NO_(3))_(2) +Y+H_(2)O....(ii)`
In reactions (i) and (ii), the compound X and Y respectively,are

Options

A. `NO_(2)` and NO
B. `NO_(2)` and `NO_(2)`
C. NO and `NO_(2)`
D. `NO_(2)` and `NH_(4)NO_(3)`

Explanation

To solve the problem, we need to analyze the reactions of zinc (Zn) with concentrated and dilute nitric acid (HNO₃) and identify the products X and Y in each case.

### Step-by-Step Solution:

1. **Identify the Reaction with Concentrated HNO₃:**
- When zinc reacts with concentrated nitric acid, it typically produces zinc nitrate and nitrogen dioxide (NO₂) as a byproduct.
- The unbalanced reaction can be represented as:
\[ \text{Zn} + \text{conc. HNO}_3 \rightarrow \text{Zn(NO}_3\text{)}_2 + X + \text{H}_2\text{O} \]
- Here, we need to determine what X is.

2. **Determine the Products:**
- The reaction of zinc with concentrated HNO₃ can be balanced as follows:
\[ \text{Zn} + 4 \text{HNO}_3 \rightarrow \text{Zn(NO}_3\text{)}_2 + 2 \text{NO}_2 + 2 \text{H}_2\text{O} \]
- From this balanced equation, we can see that X is nitrogen dioxide (NO₂).

3. **Identify the Reaction with Dilute HNO₃:**
- When zinc reacts with dilute nitric acid, it produces zinc nitrate and ammonium nitrate (NH₄NO₃).
- The unbalanced reaction can be represented as:
\[ \text{Zn} + \text{dil. HNO}_3 \rightarrow \text{Zn(NO}_3\text{)}_2 + Y + \text{H}_2\text{O} \]
- We need to determine what Y is.

4. **Determine the Products:**
- The reaction of zinc with dilute HNO₃ can be balanced as follows:
\[ \text{Zn} + 4 \text{HNO}_3 \rightarrow \text{Zn(NO}_3\text{)}_2 + \text{NH}_4\text{NO}_3 + 2 \text{H}_2\text{O} \]
- From this balanced equation, we can see that Y is ammonium nitrate (NH₄NO₃).

5. **Conclusion:**
- Therefore, the products X and Y are:
- X = NO₂ (nitrogen dioxide)
- Y = NH₄NO₃ (ammonium nitrate)

### Final Answer:
- X = NO₂
- Y = NH₄NO₃