Advertisements
Advertisements
प्रश्न
On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is demonstrated here?
पर्याय
Basic property
Oxidising property
Reducing property
Acidic property
Advertisements
उत्तर
Reducing property
Explanation:
\[\ce{CuO}\] functions as a reducing agent because it is reduced to \[\ce{Cu}\] (reddish brown ppt.) in the presence of ammonia.
\[\begin{array}{cc}
\ce{3CuO + 2NH3 ->3Cu + N2 + 3H2O}\\
\phantom{..}\ce{\underset{Reduction}{\underline{{\uparrow}\phantom{...................}{\uparrow}}}}\phantom{...............}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Give a balanced chemical equation for Catalytic oxidation of Ammonia
Ammonia solution in water gives a blue precipitate when it combines with a solution of copper salt. The blue precipitate further dissolves in excess of an ammonia solution to give the azure blue solution. Explain with the equation.
Name the gas obtained when ammonia burns in an atmosphere of oxygen without any catalyst.
Give a balanced chemical equation for the following:
Lab. preparation of ammonia using an ammonium salt.
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
CrCl3
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.
Write a balanced chemical equation for the lab preparation of ammonia.
An element has 2 electrons in its N shell. It reacts with a non-metal of atomic number 7. The compound formed reacts with warm water and produces a basic gas. Identify the elements and write a balanced chemical reaction.
