Analytical ChemistryHard
Question
A metal salt solution when treated with dimethyl glyoxime and NH4OH gives a rose red complex. The metal is -
Options
A.Ni
B.Ba
C.Al
D.Zn
Solution
Zn2+ + 2NH4OH → Zn(OH)2 ↓ (white) + 2NH4+ ; Zn(OH)2 + 4NH4OH → Zn(NH3)4 + 6H2O
Zn2+ + S2- → ZnS (white)
Zn2+ + S2- → ZnS (white)
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