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Explain the effects of heat on concentrated nitric acid.

Explain the effects of heat on concentrated nitric acid.

Answers

Observations
- Brown fumes are seen in the hard glass tube.
- Colourless gas is collected over water.

Explanations
- Sand soaked in concentrated nitric acid produces nitric solid vapour on heating.
- The hot glass wool catalyzes the decomposition of nitric acid to nitrogen (IV) oxide (brown fumes), water vapour and oxygen.

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Kavungya answered the question on April 30, 2019 at 09:44

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