Question

A white powder soluble in $NH_{4}OH$ but insoluble in water is.

• A. $BaSO_{4}$
• B. $CuSO_{4}$
• C. $PbSO_{4}$
• D. $AgCl$

Answer 1

Answer: (D)

$AgCl$

Answer 2

$AgCl$ is a covalent compound hence it is insoluble in water also it form complex with $NH_{4}OH,$ thus is soluble in $NH_{4}OH$.

$AgCl + 2NH_{4}OH \rightarrow \lbrack Ag(NH_{3})_{2}\rbrack Cl + H_{2}O$