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प्रश्न
Fill in the blank:
Oxygen is slightly _________ than air.
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उत्तर
Oxygen is slightly heavier than air.
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संबंधित प्रश्न
The most abundant element in the earth’s crust.
An oxide and a carbonate containing oxygen.
Two substances which undergo rapid oxidation.
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What happens when a glowing splinter is introduced in a jar containing oxygen ?
The natural way of adding oxygen to air which involves green plants is called
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
Complete and balance the following equation
Al + 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.
Write fully balanced equation for the following :
Na2O + H2O →
