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प्रश्न
What would you observe in the following cases:
Ammonium hydroxide is first added in a small quantity and then in excess to a solution of copper sulphate.
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उत्तर
Adding a tiny amount of ammonium hydroxide produces blue precipitates. Excess ammonium hydroxide dissolves blue precipitates, yielding a vivid blue solution.
\[\ce{CuSO4 + 2NH4OH -> \underset{Blue ppt.}{Cu(OH)2}↓ + (NH4)2SO4}\]
In excess
\[\ce{Cu(OH)2 + (NH4)2SO4 + 2NH4OH -> \underset{Deep Blue Solution}{[Cu(NH3)4]SO4} + 4H2O}\]
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संबंधित प्रश्न
How will you distinguish between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?
How will you distinguish NH4OH solution from NaOH solution?
You are provided with PbCO3, ZnCO3 and CaCO3. How will you identify these cations?
Distinguish between the following pair of compound using the test given within bracket.
Iron (II) Sulpate an and iron(III) using ammonium hydroxide)
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Write the observation for the following:
Excess NH4OH is added to a substance obtained by adding hydrochloric acid in silver nitrate solution.
Identify the cation of the following case:
NaOH solution when added to solution (A) gives a reddish brown precipitate
Write a balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
Rita was given an unknown salt for identification. She prepared a solution of the salt and divided it into two parts.
- To the first part of the salt solution, she added a few drops of ammonium hydroxide and obtained a reddish-brown precipitate.
- To the second part of the salt solution, she added a few drops of silver nitrate solution and obtained a white precipitate.
Name:
- The cation present and
- The anion present in the salt given for identification.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
