Configration of `x,y` and `z` are given `-`
`X=[Ne]3s^(2)3p^(5)`, `Y=[Ne]3s^(2)3p^(6)`
`Z=[Ne]3s^(2)3p^(4)`. Then incorrect statement is `:-`

Options

A. Conversion from Y to `Y^(+)` will requre more energy compared to conversion from X to `X^(+)`
B. Formation of `X^(-)` from X and `Z^(-)` from Z are exothermic
C. EA of X=I.E. of Y
D. I.P. of `Y^(-)lt`I.P. of `Z^(-)`

Answer

To solve the question, we need to analyze the electronic configurations of the elements X, Y, and Z, and then evaluate the statements provided to identify the incorrect one.

### Step-by-step Solution:

1. **Identify the Elements**:
- The electronic configuration of X is `[Ne] 3s^2 3p^5`. This corresponds to Chlorine (Cl), which has atomic number 17.
- The electronic configuration of Y is `[Ne] 3s^2 3p^6`. This corresponds to Argon (Ar), which has atomic number 18.
- The electronic configuration of Z is `[Ne] 3s^2 3p^4`. This corresponds to Sulfur (S), which has atomic number 16.

2. **Evaluate the Statements**:
- **Statement 1**: "Conversion of Y to Y+ will require more energy as compared to conversion from X to X+."
- This statement is correct. Argon (Y) is a noble gas and very stable, so removing an electron (ionization) requires more energy compared to Chlorine (X).

- **Statement 2**: "Formation of X- from X and Z- from Z are exothermic."
- This statement is also correct. Both Chlorine and Sulfur are non-metals and have high electron affinities, meaning they release energy when they gain an electron.

- **Statement 3**: "Electron affinity of X is equal to electron affinity of Y."
- This statement is incorrect. Chlorine has a negative electron affinity (it releases energy when gaining an electron), while Argon, being a noble gas, does not have a significant electron affinity (it does not readily gain electrons). Therefore, their values cannot be equal.

- **Statement 4**: "Ionization potential of Y- is less than ionization potential of Z."
- This statement is correct. The ionization potential of Argon (Y) is lower than that of Sulfur (Z) because Argon wants to return to its stable noble gas state, while Sulfur has a higher ionization energy due to its additional electrons.

3. **Conclusion**:
- The incorrect statement is **Statement 3**: "Electron affinity of X is equal to electron affinity of Y."