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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
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
Write a balanced chemical equation for the following:
Reaction of Ammonia with heated copper oxide.
Complete the following equation.
4 NH3 +5O2 →
What important process starts with the reaction in above? Name the catalyst used.
Identify the substance underlined:
The organic compound which when solidified, forms an ice like mass.
Name the following
Liquid when added to metallic nitride that yield ammonia.
Why is ammonium hydroxide used in qualitative analysis? Give two equations to justify your answer.
Write balanced chemical equations for the following:
An equation to illustrate the reducing nature of ammonia.
Certain blank spaces are left in the following table and these are labelled as A,B,C,Da and E. Identify each of then
|
1 |
HCl gas |
NaCl + H2SO4 |
A = ________ |
Conc.H2SO4 |
B = ___ |
|
2 |
NH3 gas |
C = ____ |
Mg(OH)2NH3 |
D = ______ |
E = ___ |
Choose the correct answer from the options given below :
Ammonia reacts with excess chlorine to form
Look at the following reaction :
A. Nitrogen + metal → compound X
B. X + water → ammonia + another compound
C. Ammonia + metal oxide → metal + water + N2
(i) One metal that can be used for reaction in A is magnesium.
(a) Write the formula of the compound X, that is formed.
(b) Write the balanced equation for reaction B, where Xis the compound formed.
( c) Which property of ammonia is demonstrated by reaction C?
A compound which undergoes thermal dissociation.
