Analytical Chemistry Question 104
Question: The reagents $ NH_4Cl $ and aqueous $ NH_3 $ will precipitate
[IIT 1991]
Options:
A) $ C{a^{2+}} $
B) $ A{l^{+3}} $
C) $ M{g^{2+}} $
D) $ Z{n^{2+}} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ NH_3\ +\ H_2O\ \to \ NH_4OH $ due to common ion effect $ NH_4^{+} $ ion concentration increases which leads to the precipitation of $ Al{{( OH )}_3} $ .
BETA
