Sulphur forms the chlorides `S_(2)Cl_(2)` and `SCl_(2)`. The equivalent mass of sulphur in `SCl_(2)` is

Options

A. (a)`8 g//mol`
B. (b)`16 g//mol`
C. (c )`64.8 g//mol`
D. (d)`32 g//mol`

Explanation

To find the equivalent mass of sulfur in \( SCl_2 \), we can follow these steps:

### Step 1: Understand the concept of equivalent mass
The equivalent mass of an element is defined as the atomic mass of the element divided by its valency in the given compound.

### Step 2: Determine the valency of sulfur in \( SCl_2 \)
In the compound \( SCl_2 \):
- Let the valency of sulfur be \( x \).
- The valency of chlorine is -1 (since it typically forms one bond).
- Since \( SCl_2 \) is a neutral compound, the sum of the oxidation states must equal zero.

Setting up the equation:
\[ x + 2(-1) = 0 \]
This simplifies to:
\[ x - 2 = 0 \]
Thus, the valency of sulfur \( x = 2 \).

### Step 3: Find the atomic mass of sulfur
The atomic mass of sulfur (S) is approximately 32 g/mol.

### Step 4: Calculate the equivalent mass of sulfur
Using the formula for equivalent mass:
\[ \text{Equivalent mass} = \frac{\text{Atomic mass}}{\text{Valency}} \]
Substituting the values we have:
\[ \text{Equivalent mass of sulfur in } SCl_2 = \frac{32 \text{ g/mol}}{2} = 16 \text{ g/equiv} \]

### Conclusion
The equivalent mass of sulfur in \( SCl_2 \) is 16 g/equiv.

---