Statement 1: There are ten valence electrons on the Sulphur atom in `SF_(4)` molecule.
Statement 2: The structure of `SF_(4)` molecule is distorted trigonal bipyramidal.

Options

A. Statemetn-1 is true, Statrment-2 is also true, Statement -2 is the correct explanation of statement-1
B. Statement -1 is true , Statement 2 is also true, Statement-2 is not the correct explanation of Statement-1
C. Statement-1 is true, Statement-2 is false.
D. Statement-1 is false, Statement-2 is true.

Explanation

To analyze the statements regarding the `SF4` molecule, we will break down the information step by step.

### Step 1: Determine the Valence Electrons of Sulfur in SF4
Sulfur (S) is in group 16 of the periodic table and has 6 valence electrons. In the `SF4` molecule, sulfur forms four bonds with fluorine atoms.

**Calculation:**
- Valence electrons from sulfur: 6
- Each fluorine (F) atom contributes 1 electron for bonding.
- Total electrons contributed by 4 fluorine atoms: 4 × 1 = 4

Thus, the total number of valence electrons around sulfur in `SF4` is:
\[ 6 \text{ (from S)} + 4 \text{ (from 4 F)} = 10 \text{ valence electrons} \]

**Conclusion for Statement 1:**
Statement 1 is true: There are 10 valence electrons on the sulfur atom in `SF4`.

### Step 2: Determine the Molecular Geometry of SF4
In `SF4`, the sulfur atom has four bonding pairs (from the four fluorine atoms) and one lone pair of electrons. The presence of the lone pair affects the geometry of the molecule.

**Geometry Analysis:**
- The ideal geometry for five electron pairs (4 bonding + 1 lone pair) is trigonal bipyramidal.
- However, the presence of the lone pair will distort this geometry.

The actual shape of `SF4` is described as a distorted trigonal bipyramidal or a seesaw shape due to the lone pair repulsion.

**Conclusion for Statement 2:**
Statement 2 is true: The structure of `SF4` is distorted trigonal bipyramidal.

### Step 3: Evaluate the Relationship Between the Statements
Both statements are true, but we need to determine if the second statement correctly explains the first.

- Statement 1 discusses the number of valence electrons.
- Statement 2 describes the molecular geometry.

While both statements are true, the second statement does not provide a correct explanation for the first statement. The number of valence electrons does not directly relate to the molecular geometry.

### Final Conclusion
- Statement 1 is true.
- Statement 2 is true.
- However, Statement 2 does not serve as a correct explanation for Statement 1.

### Answer:
Both statements are true, but Statement 2 is not the correct explanation of Statement 1.

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