Group I and Group II ionic hydrides react to water and produces the hydrogen -
H (s) + H2O (l) = OH (l) + H2 (g)
In an experiment if the 1gm sample of each of the following five ionic hydrides are mixed are treated with excess of water. Which sample will process the greatest mass of hydrogen
a) CaH2
b) LiH
c) MgH2
d) NaH