The `ppi-ppi` bond is present in

Options

A. `XeO_(3)`
B. `SO_(4)^(2-)`
C. `SO_(2)`
D. All of these

Answer

To determine where the p-pi-p-pi bond is present, we need to analyze the given options step by step.

### Step 1: Understanding p-pi-p-pi Bonds
A p-pi-p-pi bond is formed by the overlap of p orbitals from two different atoms. This bond is typically found in compounds where there are multiple bonds (double or triple bonds) involving p orbitals.

### Step 2: Analyzing the First Option - XeO3
- **Xenon (Xe)** has the electronic configuration of [Kr] 4d10 5s2 5p6.
- In XeO3, xenon forms double bonds with three oxygen atoms.
- The bond between xenon and oxygen involves the overlap of xenon's 5p orbitals with oxygen's 2p orbitals.
- Therefore, the bonds in XeO3 are indeed p-pi-p-pi bonds.

### Step 3: Analyzing the Second Option - SO4^2-
- **Sulfur (S)** has the electronic configuration of [Ne] 3s2 3p4.
- In SO4^2-, sulfur forms double bonds with two oxygen atoms and single bonds with two other oxygen atoms.
- The double bonds involve the overlap of sulfur's 3p orbitals with oxygen's 2p orbitals.
- Thus, SO4^2- also contains p-pi-p-pi bonds.

### Step 4: Analyzing the Third Option - SO2
- In SO2, sulfur again has the electronic configuration of [Ne] 3s2 3p4.
- Sulfur forms a double bond with one oxygen atom and a single bond with another.
- The double bond involves the overlap of sulfur's 3p orbitals with oxygen's 2p orbitals.
- Therefore, SO2 also contains p-pi-p-pi bonds.

### Conclusion
All three compounds (XeO3, SO4^2-, and SO2) contain p-pi-p-pi bonds due to the overlap of p orbitals between sulfur or xenon and oxygen.

### Final Answer
The p-pi-p-pi bond is present in all of the above compounds: **XeO3, SO4^2-, and SO2**.

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