On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed.
(a) Write a balanced chemical equation of the above reaction.
(b) Identity the brown gas X evolved.
(c) Identify the type of reaction.
(d) What could be the pH range of an aqueous solution of the gas X?
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Answered by
7
Answer:
Explanation:
(a) 2Cu(NO3
)2
(s) Heat 2CuO(s) + O2
(g)
+ 4NO2
(g)
(b) Brown gas X formed is nitrogen dioxide (NO2
).
(c) This is a decomposition reaction.
(d) NO2
gas dissolves in water to form an acidic
solution, because it is an oxide of a non-metal.
Therefore, the pH of this solution is less than 7.
Answered by
4
Answer:
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