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प्रश्न
Give a reason for the Electricity is not considered matter.
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उत्तर
Electricity neither has mass nor it occupies space. Besides, it can not be seen by our eyes. This is why electricity is not considered a matter
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संबंधित प्रश्न
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Differentiate between the following.
Liquids and gases .
State whether the following statement is True or False:
Only water can exist in three different states
Give two examples for the following :
Substances which sublime.
Match the following columns
| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | can vibrate only up to about `10^-10`m from their mean position. |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| E. | The molecules of a solid | v. | occupy space |
Give reason :
A gas fills up the space available to it.
Give two examples.
Gaseous element
Give two examples.
Solid element
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
