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प्रश्न
Mention the physical properties of oxygen.
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उत्तर
Physical properties of oxygen:
- Oxygen is a colorless, odorless, and tasteless gas.
- It is a poor conductor of heat and electricity
- Oxygen dissolves readily in cold water.
- It is denser than air.
- It can be made into liquid (liquefied) at high pressure and low temperature.
- It supports combustion.
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संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
How will you obtain dry oxygen in the laboratory?
Complete and balance the following equation
S + O2 →
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 :
Calcium burns in oxygen with a golden-yellow flame.
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
(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 tests for oxygen gas.
