Q. The oxide, which is best soluble in $H_{2}O$ is
A) $Ba(OH)_{2}$
B) $Sr(OH)_{2}$
C) $Ca(OH)_{2}$
D) $Mg(OH)_{2}$
Explanation
(a)
$\overset{Ba(OH)_{2} > Sr(LOH)_{2} > Ca(OH)_{2} > Mg(OH)_{2}}{\overset{\leftarrow}{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ decreasing\ order\ of\ solubility\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.