Q. One gram of hydrogen is found to combine with 80 g of bromine. One gram of calcium (Valency =2) combines with 4 g of bromine. The equivalent weight of calcium is
A) 10
B) 20
C) 40
D) 80
Explanation
(b)
Since, 1 g hydrogen combines with 80 g bromine, the eq. wt. of bromine = 80
$\because$ 4 g bromine combines with $Ca = 1g$
$\therefore 80\$g bromine will combine with $Ca = \frac{1 \times 80}{4} = 20g$
$\therefore$ Eq. wt. of $Ca$ is 20 g.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.