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प्रश्न
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.
उत्तर
Phosphorus pentaoxide on dissolving in water forms phosphoric acid.
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संबंधित प्रश्न
What is the role of manganese dioxide in the preparation of oxygen?
Fill in the blank :
____________ discovered the oxygen gas.
Fill in the blank :
Oxygen occupies about _____% of air by volume.
The natural way of adding oxygen to air which involves green plants is called
Fill in the blank:
Manganese dioxide acts as a _________.
State two characteristics of Basic oxides.
(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?
Write fully balanced equation for the following :
Na2O + H2O →
Mention the physical properties of oxygen.
Phosphorous bums with suffocating smell and gives ______.
