Q. How much of sulphur is present in an organic compound, if 0.53g of the compound gave 1.158g of $BaSO_{4}$on analysis?
A) 10%
B) 15%
C) 20%
D) 30%
Explanation
(d)
$\%\ of\ S = \frac{32}{233} \times \frac{wt.of\ BaSO_{4}}{wt.of\ organic\ compound} \times 100$
$\ \ \ \ \ \ \ \ \ \ \ \ \ = \frac{32}{233} \times \frac{1.158}{0.53} \times 100$
$\ \ \ \ \ \ \ \ \ \ \ \ \ = 30\%$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.