What is the formula of hydrolith?

What is the formula of hydrolith?
  1. $\mathrm{MgH}_{2}$
  2. $\mathrm{CaH}_{2}$
  3. $\mathrm{BaH}_{2}$
  4. $\mathrm{BeH}_{2}$

Solution

$\mathrm{CaH}_{2}$ The hydrolith formula is $\mathrm{CaH}_{2}$. Calcium hydride is a salt-like binary molecule $\left(\mathrm{CaH}_{2}\right)$ that is employed as a reducing agent and a source of hydrogen.

Asked in: MHT CET 2020 (19 Oct Shift 2)

Practice more Elements of Group 1 and 2 questions on Aicharya