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प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
Every nine parts of water by weight contains eight parts by weight of _________.
उत्तर
Every nine parts of water by weight contains eight parts by weight of oxygen.
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संबंधित प्रश्न
A chemical called oxygenated water.
Two substances which undergo rapid oxidation.
What happens when a glowing splinter is introduced in a jar containing oxygen ?
Fill in the blank:
Oxygen is slightly _________ than air.
How will you identify oxygen in the laboratory ?
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.
Write ‘True’ or ‘False’ in front of following statement.
Under laboratory conditions, the oxygen gas is insoluble in water.
(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?
Write fully balanced equation for the following :
Na2O + H2O →
Give reasons for the following:
patients suffering from lung problems are kept in an oxygen tent.
