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प्रश्न
What do you observe when Ammonia solution is added drop by drop and then in excess to aqueous copper sulphate solution.
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उत्तर
Initially when ammonium solution is added to aqueous solution of
copper sulphate a bluish precipi tate of copper hydroxide is obtained
which dissolves in excess of ammonium hydroxide.
\[\ce{CuSO4 + 2NH4OH -> (NH4)2SO4 + Cu(OH)2}\]
\[\ce{Cu(OH)2 + (NH4)2SO4 + 2NH4OH -> (Cu(NH3)4)SO4 + 4H2O}\]
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संबंधित प्रश्न
State what you observe when a piece of moist red litmus paper is placed in a gas jar of ammonia.
Choose the correct word or phrase from the bracket to complete the following sentences.
Heating solution of ammonium chloride with sodium nitrite produces ______
The diagram shows a simple arrangement of the fountain experiment:

(i) Name the two gases you have studied which can be used in this experiment
(ii) What is the common properly demonstrated by this experiment
Name the gas evolved when the following mixtures are heated.
Calcium hydroxide and ammonium chloride.
What do you observe when Excess ammonia is mixed with chlorine.
Of the two gases, ammonia and hydrogen chloride, which is denser? Name the method of collection of this gas.
