Question

find out all the hydrides obtained from group 1 elements​

Answer 1

Answer:

Properties of hydrides of Group I:

1. All the alkali metal hydrides are ionic solids with high melting points. Ionic character increases from LiH to CsH.

2. These hydrides are strong reducing agents their reducing character increases on moving don the group.

3. On moving down the group, atomic size increases and M−H bond strength in hydrides decreases so, thermal stability of hydrides decreases.

Properties of hydrides of Group II:

1. BeH

2  and MgH

2 are electron deficient covalent compounds. They hav polymeric structure due to electron deficiency.

2.  CaH

2and SrH

2are ionic in nature.

3. Hydrides of alkaline earth metals react with water to librate hydrogen gas. So, they actionsas reducing agents .StructureofBerylliumHydride:Beryllium hydeide (BeH 2 ) is electron deficient covalent compound. It has polymeric structure.Ithas three-centre two-electron bond with chemical formula (BeH 2 ) n.

Explanation: