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प्रश्न
Give reason for the following:
Concentrated nitric acid is brown in colour.
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उत्तर
Concentrated nitric acid is brown in colour due to the presence of nitrogen dioxide formed by heating the acid.
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संबंधित प्रश्न
Name the gas evolved when the following mixtures are heated.
Sodium nitrite and ammonium chloride.
Ammonia is used in the Ostwald process.
Give the sources of reactants used in this process.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
Write an equation for the following conversions A, B, C and D.
How will you prepare the following from nitric acid?
Magnesium nitrate
Name the following :
Gas produced in air during lighting.
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of HNO3, State the reason.
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
Fill in the blank with appropriate word/words.
Ammonal is a mixture of ________ and __________
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
