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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
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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.
\[\begin{array}{cc}
\ce{3CuO + 2NH3 ->3Cu + N2 + 3H2O}\\
\phantom{..}\ce{\underset{Reduction}{\underline{{\uparrow}\phantom{...................}{\uparrow}}}}\phantom{...............}
\end{array}\]
संबंधित प्रश्न
Name the gas obtained when ammonia burns in an atmosphere of oxygen without any catalyst.
Identify the substance underlined:
The catalyst used to oxidise ammonia.
Name the gas evolved in each of the following cases :
Alumina undergoes electrolytic reduction.
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 equation for:
The preparation of ammonia from ammonium chloride and calcium hydroxide.
Write a balanced equation for the following conversion:
Nitrogen trichloride from ammonia.
