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?

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KollegeApply · Accepted Answer

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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