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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?
विकल्प
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.
\[\begin{array}{cc}
\ce{3CuO + 2NH3 ->3Cu + N2 + 3H2O}\\
\phantom{..}\ce{\underset{Reduction}{\underline{{\uparrow}\phantom{...................}{\uparrow}}}}\phantom{...............}
\end{array}\]
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संबंधित प्रश्न
Identify the substance underlined:
The catalyst used to oxide ammonia.
Name the following
Basic gas that is used as a refrigerant.
Name the following
Solution used to remove fat grease.
Name the following
Salt known as ammoniac.
Give balanced reactions for the following conversion:
Ammonia solution to an amphoteric hydroxide.
Give balanced reactions for the following conversion:
Ammonia to ammonium carbonate.
Give balanced reactions for the following conversion:
Copper oxide to copper.
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
CuSO4
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.
