Statement-1 : Molarity and molality have almost same value for a very dilute aqueous solution
Statement-2 : In all very dilute solution, the mass of solvent (in gm) is equal to the volume of solution (in ml)

Options

A. Statement-1 is true, statement -2 is true and statement-2 is correct explanation for statement-2
B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-2
C. Statement-1 is false, statement-2 is true
D. Statement-1 is true, statement-2 is false

Answer

To analyze the given statements, we will break down the concepts of molarity and molality, and how they relate to very dilute solutions.

### Step-by-Step Solution:

1. **Understanding Molarity and Molality**:
- **Molarity (M)** is defined as the number of moles of solute per liter of solution. It is expressed as:
\[ M = \frac{\text{moles of solute}}{\text{volume of solution in liters}} \]
- **Molality (m)** is defined as the number of moles of solute per kilogram of solvent. It is expressed as:
\[ m = \frac{\text{moles of solute}}{\text{mass of solvent in kg}} \]

2. **Analyzing Statement 1**:
- The statement claims that molarity and molality have almost the same value for very dilute aqueous solutions.
- In very dilute solutions, the volume of the solution is approximately equal to the mass of the solvent (water) because the density of water is approximately 1 g/mL.
- Therefore, for very dilute solutions, we can say:
- 1 L of solution ≈ 1 kg of solvent (since 1 L of water has a mass of approximately 1000 g).
- This implies that for very dilute solutions:
\[ M \approx m \]
- Thus, **Statement 1 is true**.

3. **Analyzing Statement 2**:
- The statement claims that in all very dilute solutions, the mass of solvent (in grams) is equal to the volume of solution (in mL).
- For very dilute aqueous solutions, this is generally true because:
- The density of water is approximately 1 g/mL, which means 1 mL of water has a mass of approximately 1 g.
- Therefore, for very dilute solutions, the mass of solvent (in grams) can be considered equal to the volume of solution (in mL).
- Thus, **Statement 2 is also true**.

4. **Conclusion**:
- Since both statements are true, we need to determine if Statement 2 provides the correct explanation for Statement 1.
- Statement 2 explains why molarity and molality are approximately equal in very dilute solutions, as it highlights the relationship between the mass of solvent and the volume of solution.
- Therefore, **Statement 2 is the correct explanation for Statement 1**.

### Final Answer:
Both statements are true, and Statement 2 is the correct explanation for Statement 1. The correct option is:
- **Option A**: Statement 1 is true, Statement 2 is true, Statement 2 is the correct explanation for Statement 1.