Hydrogen has higher ionization energy than alkali metals,due to its

$BeH_2$ can be prepared by the reaction of

Identify the catalyst used to transform carbon monoxide from water gas into carbon dioxide.

Which of the following explanations is best for not placing hydrogen in either the group of alkali metals or halogens?

Match the correct option from Column $-A$ and Column $-B$.

Column $-A$	Column $-B$
$(1)$. $VH$	$(a)$. Ionic hydride
$(2)$. $HF$	$(b)$. Metallic hydride
$(3)$. $MgH_2$	$(c)$. Electron precise hydride
$(4)$. $B_2H_6$	$(d)$. Molecular hydride

Sodium forms a crystalline ionic solid with dihydrogen. The solid is non-volatile and non-conducting in nature. It reacts violently with water to produce dihydrogen gas. Write the formula of this compound and its reaction with water. What will happen on electrolysis of the melt of this solid?