P-Block Elements Ques 359

Question: On adding excess of ammonium hydroxide to a copper chloride solution.

[MH CET 1999]

Options:

A) A deep blue solution is obtained

B) No change is observed

C) Blue precipitate of copper hydroxide is obtained

D) Black precipitate of copper oxide is obtained

Show Answer

Answer:

Correct Answer: A

Solution:

On adding excess of ammonium hydroxide to a copper chloride solution a deep blue solution of $ {{[Cu{{(NH_3)}_4}]}^{2+}} $ ion is formed.



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