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When a mixture of NH(4)CI, NH(4) OH and ...

When a mixture of `NH_(4)CI, NH_(4) OH and Na_(2) HPO_4` was added to a solution containing `Mg^(-2)` a while precipitate (A) was formed When A was heated strongly reduce B was obtained A & B are .....

A

`Mg(NH_4)PO_4`

B

`Mg_(2)P_2O_7`

C

`Mg_(3)(PO_4)_2`

D

MgO

Text Solution

Verified by Experts

The correct Answer is:
A, B
`Mg^(2+)+NH_(4)^(+)+OH^(-)HPO_(4)^(2-)+5H_(2)O rarr Mgunderset("white ppt")((NH_4)PO_(4).6H_(2)Odarr)`
`NH_4Cl` is added to prevent the precipitation of `Mg(OH)_2`
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