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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.
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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
Fill in the blank.
The salt which will not react with NH4OH solution ______[ZnCl2, CuCl2 / NH4Cl/ FeCl2]
State what do you observe when:
Ammonium hydroxide is added to iron (III) sulphate solution.
Distinguish between the following pair of compound using the test given within bracket.
Iron (II) Sulpate an and iron(III) using ammonium hydroxide)
State two relevant observations of the following:
Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.
How would you distinguish between Zn2+ and Pb2+ using ammonium hydroxide solution?
The salt solution which does not react with ammonium hydroxide is ______.
The metal hydroxide which reacts with both acids and alkalis to form salt and water is ______.
Write balanced equation:
Copper sulphate solution with ammoni um hydroxide solution.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
