A student was given a sample of colourless solution contaning three cations and was asked to identify the cations: student carried out a series of reactions as given below. Precipitates A,B and C are respectively:

A student was given a sample of colourless solution contaning three ca

1.	A student was given a sample of colourless solution contaning three cations and was asked to identify the cations: student carried out a series of reactions as given below. Precipitates A,B and C are respectively:
Answer» `AI(OH)_(3),BaSO_(4)` and `AgCI` `AgCI, BaSO_(4)` and `zn(OH)_(2)` `AgCI,Ca(OH)_(2)` and `ZnSO_(4)` `ZnCI_(2),BaSO_(4)` and `AI(OH)_(3)` Solution :`A rarr AgCI, B rarr BaSO_(4), C rarr Zn(OH)_(2)` `A rarr` Insoluble in `HCI`, `BaSO_(4)darr +H_(2)SO_(2) ("CONC") rarr Ba^(2+) +2HSO_(4)^(-)`