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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
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
Why is potassium chlorate not used for laboratory preparation of oxygen ?
Fill in the blank:
Manganese dioxide acts as a _________.
What happens when Sulphur burns in oxygen ? Also give the balanced chemical equation for the reaction.
State the use of manganese dioxide in the laboratory prepa-ration of oxygen from potassium chlorate.
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.
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
Write fully balanced equation for the following :
SO2 + H2O →
Give reason for the following:
Oxidation of sulphur results in a product which turns moist blue litmus red.
Write a note on the rusting process.
