1.

Which of the following double salt does not exists?

Answer»

`(NH_(4))_(2)SO_(4)*CuSO_(4)*6H_(2)O`
`(NH_(4))_(2)SO_(4)*FeSO_(4)*6H_(2)O`
`(NH_(4))_(2)SO_(4)*ZmSO_(4)*6H_(2)O`
`(NH_(4))_(2)SO_(4)*NiSO_(4)*6H_(2)O`

ANSWER :A


Discussion

No Comment Found