Analytical Chemistry Question 137
Question: Concentrated aqueous sodium hydroxide can separate a mixture of
Options:
A) $ A{l^{3+}} $ and $ S{n^{2+}} $
B) $ A{l^{3+}} $ and $ F{e^{2+}} $
C) $ A{l^{3+}} $ and $ Z{n^{2+}} $
D) $ Z{n^{2+}} $ and $ P{b^{2+}} $
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Answer:
Correct Answer: B
Solution:
[b] $ A{l^{3+}} $ is soluble in $ NaOH. $