STATEMENT-1 `:` The value of van der Waal's constant 'a' is larger for `NH_(3)` than for `N_(2)`.
STATEMENT -2 `:` H-bonding is present in `NH_(3)` While `N_(2)` has only van der Waals interaction.

Options

A. STATEMENT-1 is True, STATEMENT-2 is True, STATEMENT-2 is correct explanation for STATEMENT-1
B. STATEMENT-1 is True, STATEMENT-2 is True, STATEMENT-2 is NOT a correct explanation for STATEMENT-1
C. STATEMENT-1 is True, STATEMENT-2 is False
D. STATEMENT-1 is False, STATEMENT-2 is True

Answer

To analyze the given statements, we will break down the reasoning step by step.

### Step 1: Understanding Van der Waals Constant 'a'
The Van der Waals constant 'a' is a measure of the attractive forces between particles in a gas. A larger value of 'a' indicates stronger intermolecular attractions.

**Hint:** Recall that 'a' is influenced by the types of intermolecular forces present in the substance.

### Step 2: Comparing NH₃ and N₂
Ammonia (NH₃) exhibits hydrogen bonding due to the presence of a highly electronegative nitrogen atom bonded to hydrogen atoms. In contrast, nitrogen gas (N₂) primarily exhibits weaker van der Waals forces (London dispersion forces).

**Hint:** Identify the types of intermolecular forces in both substances. Hydrogen bonding is stronger than van der Waals forces.

### Step 3: Implications of Intermolecular Forces
Since NH₃ has hydrogen bonding, which is a strong type of intermolecular force, it will have a higher value of 'a' compared to N₂, which only has weak van der Waals forces. Therefore, the statement that the value of 'a' is larger for NH₃ than for N₂ is true.

**Hint:** Consider how the strength of intermolecular forces affects the value of 'a'.

### Step 4: Evaluating Statement 2
Statement 2 states that hydrogen bonding is present in NH₃ while N₂ has only van der Waals interactions. This is also true, as NH₃ indeed has hydrogen bonding due to the presence of nitrogen and hydrogen, while N₂ only has weak van der Waals forces.

**Hint:** Verify the presence of hydrogen bonding in NH₃ and the absence of it in N₂.

### Conclusion
Both statements are true, and the reason provided in Statement 2 correctly explains why Statement 1 is true. Therefore, the correct conclusion is that both statements are correct and Statement 2 is a valid explanation for Statement 1.

**Final Answer:** Both Statement 1 and Statement 2 are true, and Statement 2 is the correct explanation for Statement 1.