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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.
State your observation for the following cases
(i) Ammonia gas is burnt in an atomosphere of oxygen in the absence of a catalyst
(ii) Glass rod dipped in ammonium hydroxide is brought near the mouth of the concentrated hydrochloric acid bottle
Name the gas evolved when the following mixtures are heated.
Calcium hydroxide and ammonium chloride
Identify the substance underlined, in the following case:
A solid formed by reaction of two gaes, one of which is acidic and the other basic in nature.
What do you observe when Filter paper dipped in colourless phenolphthalein is introduced into ammonia.
State a relevant reason for the following:
Ammonia gas is not collected over water.
