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प्रश्न
What is a molecule?
टिप्पणी लिखिए
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उत्तर
The smallest unit of matter which can exist independently is called molecule.
Example: Oxygen molecule (O2) made up of two (O) atoms.
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Composition of Matter
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संबंधित प्रश्न
Fill in the blank:
The molecules are made up of ________
Which of the following is a property of the liquids?
The molecules of each substance are identical.
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 |
Describe a simple experiment to illustrate that molecules are not at rest, but they constantly move.
Define Intermodular space.
Define Matter.
Define Element.
Write your observation and conclusion for the following:
When a small stone is gently dipped into a glass filled with water.
Differentiate between the following:
Atoms and molecules
