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Why do we boil to expel brown fumes after the addition of nitric acid...

Nithun raj k r , 7 Years ago
Grade 12th pass
anser 1 Answers
Vikas TU

Last Activity: 5 Years ago

Dear student 
We boil to expel brown fumes after the addition of nitric acid to show that Nitric Acid contains Oxygen. The combustion tube is heated strongly and concentrated nitric acid is allowed to flow into it. Due to the heat, it decomposes, liberating the corresponding gases. Reddish yellow fumes of nitrogen dioxide, water vapour and a colourless gas are obtained.

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