Qualitative Analysis - Result Question 42
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45. If metal ions of group III are precipitated by $NH _4 Cl$ and $NH _4 OH$ without prior oxidation by conc. $HNO _3 $ _____ is not completely precipitated.
(1984,1 M)
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Answer:
Correct Answer: 45. $Fe^{3+}$
Solution:
Because $Fe(OH) _2$ is soluble.
BETA
