Pick out the wrong statement

Options

A. Nitrogen has the ability to form `p pi- p pi` bonds with it self
B. Bismuth forms metallic bonds in elemental state
C. Catenation tendency is higher is nitrogen when compared with other elements of the same group
D. Nitrogen has higher first ionization enthalpy when compared with other element of the same group

Explanation

To solve the question of identifying the wrong statement regarding the properties of nitrogen and its comparison with other elements in the same group, we can analyze the provided information step by step.

### Step-by-Step Solution:

1. **Understanding the Statements:**
- **Statement 1:** Nitrogen has the ability to form P pi P pi bonds with itself (N≡N).
- **Statement 2:** Bismuth forms metallic bonds in its elemental state.
- **Statement 3:** Cation tendency is higher in nitrogen compared to other elements of the same group.
- **Statement 4:** Nitrogen has a higher first ionization enthalpy compared to other elements in the same group.

2. **Analyzing Statement 1:**
- Nitrogen indeed has the ability to form P pi P pi bonds with itself, resulting in a triple bond (N≡N). This statement is correct.

3. **Analyzing Statement 2:**
- Bismuth, being lower in the group, does exhibit metallic character and can form metallic bonds. This statement is also correct.

4. **Analyzing Statement 3:**
- The statement claims that cation tendency is higher in nitrogen compared to other elements in the same group. However, this is incorrect. As we move down the group, the cation tendency generally increases due to the larger atomic size and lower ionization energy. Nitrogen, being at the top, has a lower tendency to form cations compared to phosphorus, arsenic, etc. This statement is wrong.

5. **Analyzing Statement 4:**
- It is true that nitrogen has a higher first ionization enthalpy than the other elements in the same group due to its smaller size and higher effective nuclear charge. This statement is correct.

### Conclusion:
The wrong statement among the options provided is **Statement 3**, which incorrectly states that cation tendency is higher in nitrogen compared to other elements of the same group.

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