Advertisements
Advertisements
Question
Why is the temperature maintained at 200°C in the above reaction?
Advertisements
Solution
The temperature is maintained at 200°C in the above reaction to avoid following problems:
- Nitric acid would decompose at high temperature.
- Potassium or sodium sulphate is formed which will stick to the walls of glass and cannot be removed be easily.
- The glass apparatus may break at high temperature.
APPEARS IN
RELATED QUESTIONS
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
Name a metal nitrate which on heating is changed into metal.
Name a solution which absorbs nitric oxide.
Name the Following:
Salt used in the laboratory to prepare nitric acid
Choose the correct answer from the option given below :
When treated with nitric acid which of the following liberate hydrogen?
Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Complete and balance the following equation:
Cu + HNO3 → NO2 + ________+ _________
Give reason for the following:
Commercial concentrated nitric acid is yellow in colour, but when it is dilute with water, it turns colourless.
Give one chemical test for nitric acid.
Write the equation for the reaction of dilute nitric acid with copper.
