Ionic hydrides react with water to give:

Calcium imide on hydrolysis will give gas $(B)$ which on oxidation by bleaching powder gives gas $(C)$. Gas $(C)$ on reaction with magnesium gives compound $(D)$. $(D)$ on hydrolysis gives again gas $(B)$. $(B)$,$(C)$ and $(D)$ are

Number of nucleons in $D_2$ molecule is

What do you understand by the term non-stoichiometric hydrides? Do you expect this type of hydrides to be formed by alkali metals? Justify your answer.

When steam is passed over red hot iron,the substances formed are

Consider the following statements about the hydrides: $(I)$ Sodium hydride with water liberates oxygen gas $(II)$ Methane,silane are examples of electron precise hydrides $(III)$ Ammonia and water molecules are examples of electron deficient hydrides $(IV)$ Hydrides of beryllium and magnesium are polymeric in structure. The correct statements are: