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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
The most abundant element in the earth’s crust.
An oxide and a carbonate containing oxygen.
What is the role of manganese dioxide in the preparation of oxygen?
What happens when a glowing splinter is introduced in a jar containing oxygen ?
Fill in the blank :
Oxygen occupies about _____% of air by volume.
What happens when Sulphur burns in oxygen ? Also give the balanced chemical equation for the reaction.
What happens when Magnesium burns in oxygen ? Also give the balanced chemical equation for the reaction.
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
Write fully balanced equation for the following :
Na2O + H2O →
Give tests for oxygen gas.
