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प्रश्न
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
उत्तर
Alkaline pyrogallol solution turns brown when oxygen is passed through it.
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संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
Two substances which undergo rapid oxidation.
Fill in the blank :
Oxygen occupies about _____% of air by volume.
Fill in the blank:
Manganese dioxide acts as a _________.
State two characteristics of Acidic oxides.
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.
Statement given below is incorrect. Write the correct statement :
Oxygen is prepared in laboratory by treating hydrogen oxide with manganese dioxide.
Statement given below is incorrect. Write the correct statement :
The oxygen gas turns moist blue litmus red.
Write fully balanced equation for the following :
Na2O + H2O →
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
