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प्रश्न
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.
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उत्तर
Potassium nitrate crystals on heating strongly yield potassium nitrite and oxygen gas.
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संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
What happens when a glowing splinter is introduced in a jar containing oxygen ?
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
What happens when Magnesium burns in oxygen ? Also give the balanced chemical equation for the reaction.
State two characteristics of Basic oxides.
Complete and balance the following equation
S + O2 →
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?
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
