Question

Give the general characteristics of:

Alkali metals,

(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid

Answer 1

Alkali metals:-
(i) Bonding: All alkali metal salts are ionic in nature.
(ii) Action of air: The react rapidly with oxygen and water vapour in the air.
(iii) Action of water: They react violently with water and produce hydrogen gas.

`2M + 2H_2O ⟶2MOH + H_2`

(iv) Action of acid: They react violently with dil. HCl and dil. `H_2SO_4` to produce hydrogen gas.

`2M + 2HCl ⟶ 2MCl + H_2`