Q. An unknown element forms an oxide. What will be the equivalent weight of the element if the oxygen content is 20% by weight?
A) 16
B) 32
C) 8
D) 64
Explanation
(b)
Given that, oxygen contents in element oxide is 20% by weight.
Hence, element contents in element oxide is 80% by weight.
Then, equivalent weight of unknown element$= \frac{80}{20} \times 8$
$\therefore$ Equivalent weight of unknown element=32
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.