Advertisements
Advertisements
प्रश्न
What happens when potassium nitrate is heated
उत्तर
Potassium nitrate on heating gets converted into molten potassium nitrite with the release of oxygen.
APPEARS IN
संबंधित प्रश्न
A chemical called oxygenated water.
What happens when mercuric oxide is heated?
Fill in the blank :
Oxygen occupies about _____% of air by volume.
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
Every nine parts of water by weight contains eight parts by weight of _________.
Fill in the blank:
Oxygen is ___________ to litmus testing.
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.
Write ‘True’ or ‘False’ in front of following statement.
Under laboratory conditions, the oxygen gas is insoluble in water.
(a) Starting from hydrogen peroxide how is oxygen gas prepared in laboratory?
(b) What is the function of manganese dioxide?
(c) Write fully balanced equation for the liberation of oxygen from hydrogen peroxide.
(d) Why is the above method preferred to any other method?
Oxygen is a poor conductor of heat and electricity.
Write the reaction of oxygen with non–metals.