Question
Chemistry Question on properties of d block elements
The metal hydroxide which is soluble in excess of ammonium hydroxide is
A
\ceFe(OH)2
B
\ceFe(OH)3
C
\ceCu(OH)2
D
\ceAl(OH)2
Answer
\ceCu(OH)2
Explanation
Solution
In excess of NH4OH,Cu2+ forms soluble complex [Cu(NH3)4]SO4.