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प्रश्न
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
विकल्प
\[\ce{No^{+}_{2}}\]
\[\ce{NO^{-}_{3}ions}\]
NO2
HNO2
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उत्तर
NO2
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संबंधित प्रश्न
How will you prepare the following from nitric acid?
copper nitrate
The chemical used in the brown ring test is ______.
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Complete and balance the following equation :
SO2 + HNO3 → ______________
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
