Question

a metallic hydroxide which is soluble in excess of ammonium hydroxide giving pale blue ppt​

Answer 1

Answer:

CuSO  

4

​  

+2NH  

4

​  

OH→(NH  

4

​  

)  

2

​  

SO  

4

​  

+Cu(OH)  

2

​  

(pale−blue)

The cation present in solution B is Copper (Cu  

+2

).

The color of solution B is Blue.

The pale blue precipitate of copper hydroxide dissolves in excess of ammonium hydroxide forming tetraamine copper [II] sulphate, an azure blue(deep blue) soluble complex salt.

Answer 2

Answer:

H2O bbnmmhhjfhmfjjjjjjjjjjjjjhjhhhhggffr