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प्रश्न
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.
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उत्तर
\[\ce{\underset{\text{Blue}}{CuSO4} + \underset{\text{colourless}}{2NaOH} -> \underset{\text{Pale blue ppt.}}{Cu(OH)2↓} + \underset{\text{colourless}}{Na2SO4}}\]
In excess of alkali, pale blue precipitate of Cu(OH)2 is insoluble.
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संबंधित प्रश्न
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.
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Zinc ion and Lead ion.
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State two relevant observations of the following:
Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.
State what do you observe when ammonium hydroxide to Iron (III) sulphate solution.
Write the observation for the following :
NH4OH is added first in a small quantity and then in excess to a solution of copper sulphate.
Write the observation for the following:
Excess NH4OH is added to a substance obtained by adding hydrochloric acid in silver nitrate solution.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
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Write balanced equation:
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