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प्रश्न
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
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उत्तर
In a glass apparatus nitric acid gets decomposed by sunlight. Yellowish brown colour of nitric acid is due to the presence of nitrogen dioxide formed due to thermal decomposition of nitric acid.
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संबंधित प्रश्न
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
Name the Following:
Salt used in the laboratory to prepare nitric acid
Name the Following:
Two coloured nitrates.
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Give reason for the following:
Aqua regia dissolves gold and platinum.
Write balanced equation and name the product formed when :
Sodium hydrogen carbonate is added to nitric acid.
Write balanced equation and name the product formed when :
Zinc reacts with dilute nitric acid.
What happens when (Given balanced equation):
Nitric acid is added to Kl (aq)?
Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
