Question

8) on heating blue coloured powder of coppeso II)
hitrate in a boiling tube, copper oxide (black).
oxygen gas and a brown gas ex? is formed
d) worite a balanced chemical equation of the
Dreaction
6) Identify the brown gas
6 x evolved
identify the type of reaction

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Answer 1

Answer:

(a) 2Cu(NO3)2 → 2Cu + 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