Hydrides

Explain why : Hydride of sulphur is a gas while hydride of oxygen is a liquid.

Hydride ion is a

Hydride ion is a

Dihydrogen form three types of hydrides. (i)___ hydrides are formed by alkali metals and alkaline earth metals. (ii)___ hydrides are formed by non-metals and (iii)___ hydrides are formed by d abd f-block elements at elevated temperature. Complex metal hydrides such as (iv)___ and (v)___ are powerful reducing agents.

Which hydride is/are an ionic hydride ?