m) Reaction with oxygen: With the exception of Ba and Ra which form peroxides( MO2) rest of the metals form normal oxides( MO) on heating with excess of oxygen.
n) Reaction with halogens: The members of the family combine directly with halogen at appropriate temperature to form corresponding halides.
o) Reaction with water: The members of this group are less reactive towards water as compared to the corresponding alkali metals because these are less electropositive in nature.
p) Reaction with hydrogen: The members except Be combine with hydrogen directly upon heating to form metal hydrides.
Uses of some important compounds:-
( i) Caustic soda It is used: in soap, paper, textile, petroleum industry
( ii) Sodium carbonate It is used: a) in glass and soap industry b) in paper making and textile manufacturing c) in paint and dye stuffs d) in metal refining
e) in production of sodium compounds such as borax, caustic soda, sodium phosphate etc.