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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 _________.
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उत्तर
Every nine parts of water by weight contains eight parts by weight of oxygen.
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संबंधित प्रश्न
The most abundant element in the earth’s crust.
Two substances from which oxygen can be obtained at a large scale.
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
What happens when mercuric oxide is heated?
Fill in the blank :
Oxygen occupies about _____% of air by volume.
Fill in the blank:
Oxygen occupies about ______ of air by volume.
State the precautions while preparing oxygen in the labo-ratory.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Potassium nitrate crystals on heating strongly yield potassium nitrite and ________ gas.
State three uses of oxygen, other than artificial respiration.
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
