Advertisements
Advertisements
प्रश्न
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of \[\ce{HNO3}\]. State the reason.
उत्तर
Nitric acid forms a constant boiling mixture with water containing 68% acid. This mixture boils constantly at a constant boiling point without any change in its composition. At this temperature, the gas and the water vapour escape together. Hence, the composition of the solution remains unchanged. So nitric acid cannot be concentrated beyond 68% by distillation of the dilute solution of \[\ce{HNO3}\].
APPEARS IN
संबंधित प्रश्न
Fill in the blanks using the appropriate words given below :
(Sulphur dioxide, nitrogen dioxide, Nitric oxide, Sulphuric acid)
Hot, concentrated nitric acid reacts with sulphur to form ______________.
Name the gas that is produced in the given case:
The action of cold and dilute nitric acid on copper
During thunderstorm, rain water contains nitric acid. Explain with reactions.
In the preparation of nitric acid from KNO3 concentrated hydrochloric acid is not used in place of concentrated sulphuric acid. Explain why?
Write a balanced equation and name the products formed when sodium hydrogen carbonate is added to nitric acid.
Write a balanced equation and name the products formed when concentrated nitric acid is heated.
Write down the word equation or balanced equation for the action of concentrated nitric acid on copper.
Write equation to show the reaction between the following:
Copper and concentrated nitric acid.
Write equation to show the reaction between the following:
Copper oxide and dilute nitric acid.
Convert the following reaction into a balanced chemical equation:
Ammonia to nitric oxide using oxygen and platinum catalyst.
