Advertisements
Advertisements
प्रश्न
How would you distinguish between Zn2+ and Pb2+ ions, using ammonium hydroxide solution?
Advertisements
उत्तर
Zn2+ ions on addition of NH4OH forms white precipitates of Zn(OH)2 which further dissolves in excess of NH4OH.
On the other hand, Pb2+ ions do form Pb(OH)2 with ammonium hydroxides but these precipitates do not dissolve in excess of NH4OH.
APPEARS IN
संबंधित प्रश्न
State your observations when ammonium hydroxide solution is added drop by drop and then in excess to the following solution:
Copper sulphate solution
What happens when ammonia solution is added first dropwise and then in excess to the following solution:
CuSO4
Write a balanced equation for this reaction.
Using ammonium hydroxide, how would you distinguish between the following pair of ions in solution?
Ferrous ion and Ferric ion.
You are provided with PbCO3, ZnCO3 and CaCO3. How will you identify these cations?
Three test tubes contain calcium nitrate solution, zinc nitrate solution and lead nitrate solution.Describe the effect of Adding ammonium hydroxide to each portion in turn till it is in excess.
Choose the correct answer from the options given below :
A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is :
Write the observation for the following:
NaOH is added drop-wise till in excess to a solution of zinc sulphate.
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 a balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
