Analytical Chemistry Question 83
Question: On adding excess of ammonium hydroxide to a copper sulphate solution
[MP PMT 1995]
Options:
A) Blue precipitate of copper hydroxide is obtained
B) Black precipitate of copper oxide is obtained
C) A deep blue solution is obtained
D) No change is observed
Show Answer
Answer:
Correct Answer: C
Solution:
$ \underset{(\text{excess)}}{\mathop{4NH_4OH}}+CuSO_4\to [ Cu{{(NH_3)}_4} ]SO_4 $
$ +4H_2O $
BETA
