The solution of II A group precipitate in dil | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The $II A$ group precipitate (sulfides) dissolves in dilute $HNO_3$ to form metal nitrates. When $NH_4OH$ is added to the solution containing $Cu^

Vedclass · Accepted Answer

$Cu$

Vedclass · Answer

(D) The $II A$ group precipitate (sulfides) dissolves in dilute $HNO_3$ to form metal nitrates. When $NH_4OH$ is added to the solution containing $Cu^{2+}$ ions,it forms a deep blue complex,tetraamminecopper$(II)$ ion. The reaction is: $Cu^{2+} + 4NH_4OH 	o [Cu(NH_3)_4]^{2+} + 4H_2O$. The deep blue color is characteristic of the $[Cu(NH_3)_4]^{2+}$ complex.

The solution of $II A$ group precipitate in dilute $HNO_3$ when treated with $NH_4OH$ becomes blue because of the presence of

Similar Questions

The compound that inhibits the growth of tumors is

Sodium thiosulphate,$Na_2S_2O_3 \cdot 5H_2O$ is used in photography to

The metal cation present in sodium nitroprusside is also present in:

Hypo is used in photography because of its

When potassium ferrocyanide crystals are heated with concentrated $H_2SO_4$,which of the following gases is evolved?

Vedclass Test Series

Exam Paper Generator

Online Exam Module