Question

Sulphur forms the chlorides $S_{2}C{l}_2$ and $SC{l}_2$. The equivalent mass of sulphur in $SC{l}_2$ is $16g/$ mol. Therefore, the equivalent mass of sulphur in $S_{2}C{l}_2$ is:

• A. $32g/$ mol
• B. $16g/$ mol
• C. $64g/$ mol
• D. $8g/$ mol

Answer 1

Answer: (A)

$32g/$ mol

Equivalent mass of sulphur can be calculated by the equation:

$\text{Equivalent mass}=\frac{\text{molar mass of element}}{\text{valency of the element in the compound}}$

Therefore, the equivalent mass of sulphur in $SC{l}_2$ is calculated as follows (taking the valency as +2):

$\text{Equivalent mass of sulphur}=\frac{32}{2}=16g/mol$

Similarly, in the case of $S_{2}C{l}_2$ (taking the valency as +2),

$\text{Equivalent mass of sulphur}=\frac{32\times 2}{2}=32g/mol$