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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.
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
State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions :
1) Copper sulphate solution
2) Zinc sulfate 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?
State what do you observe when:
Ammonium hydroxide is added to iron (III) sulphate solution.
Choose the correct answer from the options given below :
A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is :
Distinguish between the following pair of compound using the test given within bracket.
Iron (II) Sulpate an and iron(III) using ammonium hydroxide)
Write the observation for the following:
NaOH is added drop-wise till in excess to a solution of zinc sulphate.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
Write a balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
Write balanced equation:
Copper sulphate solution with ammoni um hydroxide solution.
