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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.
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उत्तर
Phosphorus pentaoxide on dissolving in water forms phosphoric acid.
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संबंधित प्रश्न
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
Fill in the blank :
Oxygen occupies about _____% of air by volume.
State the use of manganese dioxide in the laboratory prepa-ration of oxygen from potassium chlorate.
Complete and balance the following equation
S + O2 →
Complete and balance the following equation
\[\ce{N2 + O2 ->[3000°C]}\]
Statement given below is incorrect. Write the correct statement :
Oxygen is prepared in laboratory by treating hydrogen oxide with manganese dioxide.
Write ‘True’ or ‘False’ in front of following statement.
Liquid oxygen is used for burning fuel in spaceships.
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
(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.
