Advertisements
Advertisements
Question
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
Advertisements
Solution
Potassium chlorate is a white solid. When it is heated strongly, first it melts and then it begins to boil, giving of oxygen. Potassium chlorate needs strong heating. That is why it is not used for laboratory preparation of oxygen.
APPEARS IN
RELATED QUESTIONS
What happens when mercuric oxide is heated?
What happens when potassium nitrate is heated
The natural way of adding oxygen to air which involves green plants is called
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
State two characteristics of Acidic oxides.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Phosphorus pentaoxide on dissolving in water forms _________ acid.
Statement given below is incorrect. Write the correct statement :
Oxygen is prepared in laboratory by treating hydrogen oxide with manganese dioxide.
Write fully balanced equation for the following :
Na2O + H2O →
Mention the physical properties of oxygen.
Write the reaction of oxygen with non–metals.
