Question

gass obtained by treating copper with dilute nitric is calleda colourless becomes redish contact wi aa colorless gas which reddish brown when it comes in contact with the atmosphere​ is called
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Answer 1

Answer:

The pure nitric acid is colourless conictric acid undergoes decomposition as it is very unstable to heat.On decomposition they become reddish brown,nitrogen dioxide gas which when dissolved in the acid appears yellow in colour.

Explanation:

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