Group 2 hydrides with significant covalent character is/are

Which of the following hydride have significant covalent character :

Which of the following hydride have significant covalent character :

An ionic hydride of an alkali metal has significant covalent character and is almost unreactive towards oxygen and chlorine . This is used in the synthesisi of other useful hydrides. Write the formula of this is used in the synthesis of other hydrides. Write the formula of this hydride. Write its reaction with Al_(2)Cl_(6) .

An ionic hydride of an alkali metal has significant covalent character and is almost unreactive towards oxygen and chlorine . This is used in the synthesisi of other useful hydrides. Write the formula of this is used in the synthesis of other hydrides. Write the formula of this hydride. Write its reaction with Al_(2)Cl_(6) .

Which among the following hydrides is elecron-deificient covalent hydride ?

An ionic alkali metal hydride has covalent character to some extent and it does not react with oxygen and chlorine. This hydride is used in the synthesis of another hydride. Write the formula of the hydride and what happens when it reacts with Al_(2)Cl_(6) .

Covalent Hydrides