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प्रश्न
The metallic hydroxide which forms a deep inky blue solution with excess ammonium hydroxide solution is ______.
विकल्प
Fe(OH)2
Cu(OH)2
Ca(OH)2
Fe(OH)3
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उत्तर
The metallic hydroxide which forms a deep inky blue solution with excess ammonium hydroxide solution is Cu(OH)2.
Explanation:
The pale blue Cu(OH)2 precipitate dissolves in excess of ammonium hydroxide derived from tetraamine copper sulphate.
\[\ce{Cu(OH)2 + (NH4)2SO4 + 2NH4OH -> [Cu(NH3)4]SO4 + 4H2O}\]
संबंधित प्रश्न
Select from the list the gas that matches the description given in case
[ammonia, ethane, hydrogen chloride, hydrogen sulfide, ethyne]
This gas is used as a reducing agent in reducing copper oxide to copper
Name the following
Solid obtained by passing ammonia over heated copper oxide
Name the following
Liquid when added to metallic nitride that yield ammonia.
Name the following
Products obtained by treating with excess chlorine.
Write a balanced chemical equation for the following:
An equation to illustrate the reducing nature of ammonia.
Give balanced equation of :
Action of heat an a mixture of copper an nitric acid
Write the equation for:
The preparation of ammonia from ammonium chloride and calcium hydroxide.
Write the equation for the formation of ammonia by the action of water on magnesium nitride.
Write the equations for the following reactions, which result in the formation of ammonia:
(i) A mixture of ammonium chloride and slaked lime is heated.
(ii) Aluminium nitride and water.
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide.
Write a balanced chemical equation for the Black copper oxide changes to a reddish brown/pink copper reaction.
