1.

MgSO_(4) +NH_(4)OH + Na_(2)HPO_(4) to white crystalline precipitate.The formula of crystalline precipitate is:

Answer»

`MgCl_(2).MgSO_(4)`
`MgSO_(4)`
`MG(NH_(4))PO_(4)`
`Mg(PO_(4))_(2)`

SOLUTION :`MgSO_(4)` on reaction with `Na_(2)HPO_(4)` in presence of `NH_(4)OH` gives WHITE PRECIPITATE of `Mg(NH_(4))PO_(4)`
`MgSO_(4)+Na_(2)HPO_(4) + NH_(4)OH to Mg(NH_(4))PO_(4)darr+Na_(2)SO_(4)+H_(2)O`


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