Identify the incorrect statement :

Options

A. The S - S - S bond anlges in the `S_8 and S_6` rings are the same .
B. Rhombic and monoclinic Sulphur have `S_8 ` molecules
C. `S_2` is paramagnetic like oxygen .
D. `S_8` ring has a crown shape

Answer

To solve the question of identifying the incorrect statement regarding sulfur compounds, we will analyze the given information step by step.

### Step 1: Analyze the bond angles and structures of S8 and S6
- **S8 Structure**: The S8 molecule has a crown shape with a bond angle of approximately 107 degrees and a bond length of about 204 picometers.
- **S6 Structure**: The S6 molecule has a different structure with a bond angle of approximately 102.2 degrees and a bond length of about 205.7 picometers.

**Hint**: Compare the bond angles and lengths of S8 and S6 to identify any discrepancies.

### Step 2: Compare the bond angles
- The bond angle for S8 is 107 degrees, while for S6 it is 102.2 degrees. Since both angles are not the same, the statement claiming they have the same angle is incorrect.

**Hint**: Remember that bond angles can vary significantly between different molecular structures.

### Step 3: Evaluate the statements about rhombic and monoclinic sulfur
- The statement mentions that rhombic and monoclinic sulfur have acid molecules. This is a correct statement as both forms of sulfur can exhibit acidic properties.

**Hint**: Look for properties that are common to different allotropes of the same element.

### Step 4: Assess the paramagnetism of S2
- The statement claims that S2 is paramagnetic like O2. This is also correct. Both O2 and S2 have unpaired electrons in their molecular orbital configurations, making them paramagnetic.

**Hint**: Recall the concept of unpaired electrons in molecular orbital theory to determine paramagnetism.

### Step 5: Review the crown shape of acid rings
- The statement about acid rings having a crown shape is also correct, as the crown shape is a characteristic feature of certain cyclic sulfur compounds.

**Hint**: Familiarize yourself with the common shapes and structures of cyclic compounds.

### Conclusion
After evaluating all the statements, we identify that the incorrect statement is the one claiming that S8 and S6 have the same bond angle.

**Final Answer**: The incorrect statement is that S8 and S6 have the same bond angle.