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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
Name the following :
Gas produced in air during lighting.
What are the reactants required for Ostwald process and what are their sources?
Write balanced equation and name the product formed when :
Zinc reacts with dilute nitric acid.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?
Choose the correct answer from the option given below :
Concentrated nitric acid oxidises phosphorus to :
Give the name of a soluble lead salt and write the eqution for the action of heat on this salt. Write the equation for the preparation of nitric acid from potassium nitrate.
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
