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प्रश्न
State two characteristics of Acidic oxides.
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उत्तर
Acidic oxides
- Formed when non metals are burnt in oxygen
- When dissolved in water form acids, eg. carbon dioxide [CO2]
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संबंधित 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.
Statement given below is incorrect. Write the correct statement :
Oxygen is prepared in laboratory by treating hydrogen oxide with manganese dioxide.
Write ‘True’ or ‘False’ in front of following statement.
Under laboratory conditions, the oxygen gas is insoluble in water.
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
(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.
Give reason for the following:
Oxidation of sulphur results in a product which turns moist blue litmus red.
Oxygen is a poor conductor of heat and electricity.
Write about the combustible property of Oxygen.
Write a note on the rusting process.
