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प्रश्न
Using ammonium hydroxide, how would you distinguish between the following pair of ions in solution?
Ferrous ion and Ferric ion.
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उत्तर
Ferrous ion and Ferric ion
(i) \[\ce{FeSO4 + 2NH4OH -> Fe(OH)2 v + (NH4)2SO4}\]
Fe(OH)2 forms dirty green precipitates.
(ii) \[\ce{Fe2(SO4)3 + 6NH4OH -> 2Fe(OH)3 v + 3(NH4)2SO4}\]
Fe(OH)3 forms reddish brown precipitates.
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संबंधित प्रश्न
On adding dilute ammonia solution to a colourless solution of a salt, a white gelatinous precipitate appears. This precipitate however dissolves on addition of excess of ammonia solution. Identify (choose from Na, Al, Zn, Pb, Fe)
What is the formula of the white gelatinous precipitate obtained?
Name the metal hydroxides which are insoluble in ammonium hydroxide solution.
Fill in the blank.
The salt which will not react with NH4OH solution ______[ZnCl2, CuCl2 / NH4Cl/ FeCl2]
Distinguish between the given pair of compounds using the test given within brackets:
A lead salt and a zinc salt (using excess 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.
Write the observation for the following :
NH4OH is added first in a small quantity and then in excess to a solution of copper sulphate.
The salt solution which does not react with ammonium hydroxide is ______.
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 ammonium hydroxide solution.
