Advertisements
Advertisements
Question
The metallic hydroxide which forms a deep inky blue solution with excess ammonium hydroxide solution is ______.
Options
Fe(OH)2
Cu(OH)2
Ca(OH)2
Fe(OH)3
Advertisements
Solution
The metallic hydroxide which forms a deep inky blue solution with excess ammonium hydroxide solution is Cu(OH)2.
Explanation:
The pale blue Cu(OH)2 precipitate dissolves in excess of ammonium hydroxide derived from tetraamine copper sulphate.
\[\ce{Cu(OH)2 + (NH4)2SO4 + 2NH4OH -> [Cu(NH3)4]SO4 + 4H2O}\]
APPEARS IN
RELATED QUESTIONS
The equation 4NH3 + 5O2 → 4NO + 6 H2O, represents the catalytic oxidation of ammonia. If 100 cm3 of ammonia is used calculate the volume of oxygen required to oxidize the ammonia completely
Study the flow chart given and give balanced equations to represent the reactions A, B and C:
\[\ce{Mg3N2 ->[A] NH3 <=>[B][C] NH4Cl}\]
Name the following
Substance used to dry ammonia
Name the following
Basic gas that is used as a refrigerant.
Why is ammonium hydroxide used in qualitative analysis? Give two equations to justify your answer.
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
Pb(NO3)2
Complete and balance the equation: CuO(heated) + NH3 →
Write a balanced equation for the following conversion:
Nitrogen trichloride from ammonia.
On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is demonstrated here?
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?
