Advertisements
Advertisements
Question
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of HNO3, State the reason.
Advertisements
Solution
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of HNO3 because it forms an azeotropic mixture i.e, at 121°C it boils without any change in its concentration of the mixture with water
APPEARS IN
RELATED QUESTIONS
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
Why is the temperature maintained at 200°C in the above reaction?
Give reason for the following:
Nitric acid is used in purification of gold.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
Write a balanced equation for the production of nitrogen dioxide using copper.
Describe what you see when concentrated nitric acid is added to copper.
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
Give a balanced equation for the following reaction:
Copper reacts with concentrated nitric acid.
