On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and brown gas (X) is formed.
On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and brown gas (X) is formed.
i. Write a balanced chemical equation of the reaction.
ii. Identify the brown gas X evolved.
iii. Identify the type of reaction.
iv. What could be the pH range of aqueous solution of the gas X?
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(a) 2Cu(NO3)2 → 2CuO+ 4NO2+O2
(b) The brown gas 'X' has to be nitrogen dioxide.
(c) This type of reaction falls under the category of Decomposition reactions.
(d) The pH of the aqueous solution of gas X would be less than The oxides of non metals are generally acidic in nature. Therefore, their aqueous solutions would exhibit acidic nature.
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