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Chemistry
MgSO4 on reaction with NH4OH and Na2HPO4 forms a white crystalline precipitate. What is its formula?
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Q. $ MgSO_4 $ on reaction with $ NH_4OH $ and $ Na_2HPO_4 $ forms a white crystalline precipitate. What is its formula?
IIT JEE
IIT JEE 2006
The s-Block Elements
A
$ Mg(NH_4)PO_4 $
49%
B
$ Mg_3(PO_4)_3 $
26%
C
$ MgCl_2 \cdot MgSO_4 $
16%
D
$ MgSO_4 $
9%
Solution:
Magnesium ammonium phosphate is precipitated out
$ MgSO_4 + NH_4OH + Na_2HPO_4 \rightarrow Mg(NH_4)PO_4 \downarrow + Na_2SO_4 $