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प्रश्न
Write the observation, and balanced equation for the following reaction:
Ammonium hydroxide is added first in a small quantity, and then in excess, to a solution of copper sulphate.
उत्तर
When ammonium hydroxide is added in small quantity to copper sulphate solution; it gives blue precipitate of Cu(OH)2
\[\ce{\underset{\text{Blue}}{CuSO4} + 2NH4OH ->\underset{\text{Pale blue ppt.}}{Cu(OH)2} + (NH4)2SO4}\]
When ammonium hydroxide is added in excess, the blue precipitate dissolves giving deep blue solution of tetra amine copper sulphate.
\[\ce{Cu(OH)2 + (NH4)2SO4 +\underset{\text{In excess}}{2NH4OH} ->\underset{\text{Tetrammine copper( II)
Sulphate (Deep blue solution)}}{[Cu(NH3)4]SO4} +4H2O}\]
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संबंधित प्रश्न
Choose the correct answer from the options given below:
A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is:
1) Calcium chloride
2) Ferrous chloride
3) Ferric chloride
4) Copper chloride
How will you distinguish NH4OH solution from NaOH solution?
Using ammonium hydroxide, how would you distinguish between the following pair of ions in solution?
Ferrous ion and Ferric ion.
Name the method used for preparation of the following salt from the list given below:
Zinc ion and Lead ion.
You are provided with PbCO3, ZnCO3 and CaCO3. How will you identify these cations?
Fill in the blank.
The salt which will not react with NH4OH solution ______[ZnCl2, CuCl2 / NH4Cl/ FeCl2]
How would you distinguish between Zn2+ and Pb2+ ions, using ammonium hydroxide solution?
Identify the cation of the following case:
NaOH solution when added to solution (A) gives a reddish brown precipitate
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess:
CuSO4
Write a balanced equation for this reaction.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
