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.
\[\begin{array}{cc}
\ce{3CuO + 2NH3 ->3Cu + N2 + 3H2O}\\
\phantom{..}\ce{\underset{Reduction}{\underline{{\uparrow}\phantom{...................}{\uparrow}}}}\phantom{...............}
\end{array}\]
संबंधित प्रश्न
Copy and complete the following table which refers to the industrial method for the preparation of ammonia and sulphuric acid:
| Name of the compoun | Name of the process | Catalytic equation (with the catalyst) |
| Ammonia | (i)__________ | (ii) __________ |
| Sulhuric acid | (iii) ___________ | (iv) __________ |
Name the following
Indicator that turns deep pink when treated with NH4OH.
Name the following
Salt known as ammoniac.
Ammonia is manufactured by Haber Process.
Under what conditions do the reactants combine to form ammonia? Give a balanced equation for the reaction.
Give a balanced chemical equation for the following:
Lab. preparation of ammonia using an ammonium salt.
Give balanced equation of :
Action of heat an a mixture of copper an nitric acid
Copy and complete the following equation:
\[\ce{Mg3N2 + 6H2O ->}\]
Write a balanced chemical equation for the lab preparation of ammonia.
A compound which undergoes thermal dissociation.
