Question

Shaline hydride is
1.CaH2
2.CaH3
3.CoH2
4.ScH3​

Answer 1

Saline, or ionic, hydrides are defined by the presence of hydrogen as a negatively charged ion, H−. The saline hydrides are generally considered those of the alkali metals and the alkaline-earth metals

with then

So CaH2 is answer May this help u