Question

An oxide of sulphur contains $50$% of sulphur in it. Its empirical formula is :

• A. $S{O}_2$
• B. $S{O}_3$
• C. $SO$
• D. $S_{2}O$

Answer 1

The correct option is A $S{O}_2$

The molar ratio is given as,

$n_S:n_O$

$\frac{50}{32}:\frac{50}{16}$

$=1:2$

Hence, the formula is $S{O}_2$.