The correct statement regarding `SO_(2)` molecule is :

Options

A. two `p pi -d pi `bonds
B. molecule has 2 lone pair, `2sigma` bonds and `2pi` bonds
C. two `p pi-p pi` bonds
D. one `p pi - p pi` and one `p pi - d pi` bond

Answer

To determine the correct statement regarding the SO₂ molecule, we need to analyze its structure, bonding, and hybridization. Here’s a step-by-step solution:

### Step 1: Determine the Molecular Structure of SO₂
- SO₂ (sulfur dioxide) consists of one sulfur atom and two oxygen atoms.
- The sulfur atom is the central atom, and it forms double bonds with each of the two oxygen atoms.

### Step 2: Identify the Hybridization of Sulfur in SO₂
- The electronic configuration of sulfur (atomic number 16) is:
- 1s² 2s² 2p⁶ 3s² 3p⁴.
- In the SO₂ molecule, sulfur uses its 3s and 3p orbitals to form bonds.
- To accommodate the bonding requirements, one of the 3p electrons can be promoted to the 3d orbital, allowing for the formation of multiple bonds.

### Step 3: Count the Bonds in SO₂
- Sulfur forms two sigma (σ) bonds with the two oxygen atoms.
- Each double bond consists of one sigma bond and one pi (π) bond.
- Therefore, SO₂ has:
- 2 sigma bonds (one with each oxygen)
- 2 pi bonds (one from each double bond)

### Step 4: Identify the Lone Pairs on Sulfur
- In SO₂, sulfur has one lone pair of electrons remaining after forming the bonds with oxygen.
- This lone pair is not involved in bonding.

### Step 5: Analyze the Bond Types
- The bonds formed in SO₂ can be classified as follows:
- The two pi bonds are formed by the overlap of the p orbitals of sulfur and oxygen.
- The sigma bonds are formed by the overlap of the hybridized orbitals of sulfur with the p orbitals of oxygen.

### Step 6: Evaluate the Given Options
- **Option A**: "2 p pi d pi bonds" - Incorrect, as there is no such combination.
- **Option B**: "Molecule has 2 lone pairs, 2 sigma bonds, and 2 pi bonds" - Incorrect, as there is only 1 lone pair.
- **Option C**: "2 p pi d pi 2 p pi p pi bonds" - Incorrect, as this does not accurately describe the bonding.
- **Option D**: "1 p pi d pi and 1 p pi p pi bond" - Correct, as it accurately describes the bonding in SO₂.

### Conclusion
The correct statement regarding the SO₂ molecule is **Option D**: "1 p pi d pi and 1 p pi p pi bond."

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