Analytical ChemistryHard
Question
Ammonium molybdate test is used for the estimation of :
Options
A.PO43-
B.Mg2+
C.As3+
D.CH3COO-
Solution
(A) HPO42- + 3NH4+ + 12 MoO42- + 23H+ (HNO3) → (NH4)3[P(Mo3O10)4] ↓ (canary yellow/yellow) + 12H2O.
(C) AsO43- + 12 MoO42- + 3NH4+ + 24H+(HNO3) → (NH4)3AsMo12O40 ↓ (yellow) + 12H2O.
(C) AsO43- + 12 MoO42- + 3NH4+ + 24H+(HNO3) → (NH4)3AsMo12O40 ↓ (yellow) + 12H2O.
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