Group 2A + H2O M = Be,Mg,Ca,Ba
Ø Be has no reaction with water
Ø Mg reacts with boiling water
Ø Calcium to barium react with
water at 25oC with increasing rapidity
M
+ 2H2O ®
M(OH)2 + H2
again an increasing rapidity to react as
we move
down the Group.
• Be does not react as it has low reactivity & forms covalent rather than ionic
bonds.