Answer:
SEPARATION SCHEME FOR CATIONS
GIVEN CATIONS : 
Step 1: Add
of
to the mixture solution
Result : This would cause a precipitate of
to be formed
Reaction :
Step 2 : Next is to remove the precipitate and add
to the remaining
solution in the presence of
of HCl
Result : This would cause a precipitate of
to be formed
Reaction : 
Step 3: Next remove the precipitate then add
of aqueous
, process the solution in a centrifuge,when the
process is done then sort out the precipitate from the solution
Now this precipitate is
and the remaining solution
contains 
Next take out the precipitate to a different beaker and add HCl
to it this will dissolve it, then add a drop of
this will
form a precipitate
which will have the color of
blood indicating the presence of 
Reaction : 


Now the remaining mixture contains
Explanation: