d>e>c>b>a
Reason: Smaller the cation , it gets easily hydrated, coz more polarizing power(Fajan's rule)
, thereffore smaller gets hydrated easily....
incresin hydration of ions
a Ba+2
b Sr+2
c Ca+2
d Be+2
e Mg+2
?
n y ?
d>e>c>b>a
Reason: Smaller the cation , it gets easily hydrated, coz more polarizing power(Fajan's rule)
, thereffore smaller gets hydrated easily....
a>b(whichever is the last member in the group bcums least, sry forgot which one is heavier - Ba or Sr )