Advertisements
Advertisements
प्रश्न
Explain the following observations very briefly
An empty glass in fact is not empty.
उत्तर
In an empty glass there is always air present which covers up the space therefore, it cannot be said empty. Air is transparent, weightless and doesn’t have a definite shape or volume, thus, we cannot see it
APPEARS IN
संबंधित प्रश्न
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
Briefly state the importance of Nitrogen.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The mesosphere in the atmosphere, contains most of the air, fit for respiration
Mention one necessary condition for the combustion to take place.
Solvay process is a method to manufacture
Give the components present in the air with a percentage?
A ______ gas that is used to remove carbon impurities from the steel.
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
