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प्रश्न
Define Molecule.
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उत्तर
A molecule is the smallest part of a compound that exists independently.
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संबंधित प्रश्न
Fill in the blank:
The molecules are made up of ________
Write whether the following statement are true or false.
A gas has no free surface.
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions
Name the phenomenon which causes the Conversion of water into steam is
Select the correct alternative
The molecules ____________
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 |
What are fluids? Give two examples.
Write true or false for the statement. Rewrite the false statement correctly.
Solids and liquids can flow.
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
