D And F Block Elements Question 455
Question: A white powder soluble in $ NH_4OH $ but insoluble in water is
[AFMC 1987]
Options:
A) $ BaSO_4 $
B) $ CuSO_4 $
C) $ PbSO_4 $
D) $ AgCl $
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Answer:
Correct Answer: D
Solution:
$ AgCl $ is a covalent compound hence it is insoluble in water also it form complex with $ NH_4OH, $ thus is soluble in $ NH_4OH $ . $ AgCl+2NH_4OH\to [Ag{{(NH_3)}_2}],Cl+H_2O $
BETA
