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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
Phosphorus pentaoxide on dissolving in water forms _________ acid.
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उत्तर
Phosphorus pentaoxide on dissolving in water forms phosphoric acid.
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संबंधित प्रश्न
Why is oxygen collected by downward displacement of water?
Name the three types of oxidation processes. In which of these large amount of heat and light energy are produced?
How is oxygen naturally renewed in air ?
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
Statement given below is incorrect. Write the correct statement :
Calcium burns in oxygen with a golden-yellow flame.
(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?
State any four physical properties of oxygen gas.
Write fully balanced equation for the following :
Na2O + H2O →
Give tests for oxygen gas.
Give reason for the following:
Oxidation of sulphur results in a product which turns moist blue litmus red.
