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प्रश्न
Statement given below is incorrect. Write the correct statement :
Oxygen is prepared in laboratory by treating hydrogen oxide with manganese dioxide.
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उत्तर
Oxygen is prepared in laboratory by treating hydrogen peroxide with manganese dioxide.
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संबंधित प्रश्न
An oxide and a carbonate containing oxygen.
Fill in the blank:
Oxygen occupies about ______ of air by volume.
State the precautions while preparing oxygen in the labo-ratory.
Complete and balance the following equation
S + O2 →
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.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
The nitric oxide gas reacts with the oxygen and water vapour to form ______ vapour.
Statement given below is incorrect. Write the correct statement :
The oxygen gas turns moist blue litmus red.
Write ‘True’ or ‘False’ in front of following statement.
Liquid oxygen is used for burning fuel in spaceships.
Give reasons for the following:
patients suffering from lung problems are kept in an oxygen tent.
Mention the physical properties of oxygen.
