NEET Chemistry Functional Group Tests MCQ Question
In the test for copper ions (Cu 2+) using ammonium hydroxide, what complex is formed when the solution is treated with excess NH4OH?
[Cu(NH3)4]SO4
Cu(NO3)2
Cu(OH)2
CuSO4
Correct Answer
Detailed Explanation
The NCERT context states that when Cu(OH)2 is treated with excess NH4OH, it forms the tetraamminecopper (II) complex, [Cu(NH3)4]SO4.
Found an issue with this question?
Related Questions
More from Functional Group Tests
What white precipitate is formed when calcium chloride solution is added to an acidified sodium carbonate extract containing oxalate ions?
Which of the following statements about functional group tests are correct?
Which of the following combinations correctly describes tests related to functional groups in qualitative analysis?
More from
Assertion (A): The evolution of violet vapors when MnO2 is added to a reaction mixture containing NaI and H2SO4 indicates the presence of iodide ions....
What color indicates the presence of Cu²⁺ ions when observed in a heating test?
Assertion (A): The presence of iodide ions can be confirmed by the violet color in the organic layer. | Reason (R): Iodine dissolves in the organic so...