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प्रश्न
Write the observation for the following :
NH4OH is added first in a small quantity and then in excess to a solution of copper sulphate.
उत्तर
Dropwise addition of NH4OH:
\[\ce{CuSO4 + 2NH4OH -> \underset{\text{Blue ppt.}}{Cu(OH)2} + (NH4)2SO4}\]
with excess of NH4OH, the precipitate of copper(II) hydroxide dissolves as:
\[\ce{Cu(OH)2 + (NH4)2SO4 + \underset{\text{In excess}}{2NH4OH} -> \underset{\text{Tetrammine copper(II) sulphate}}{[Cu(NH3)4]SO4 + 4H2O}}\]
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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 between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?
What happens when ammonia solution is added first dropwise and then in excess to the following solution:
FeCl3
Write a balanced equation for this reaction.
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.
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.
State two relevant observation of the following:
Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess
How would you distinguish between Zn2+ and Pb2+ using ammonium hydroxide solution?
______ is a white precipitate that is soluble in excess of Ammonium hydroxide solution.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
