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प्रश्न
The molecules of each substance are identical.
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उत्तर
This statement is true.
Explanation:
In a pure substance, all molecules are identical in composition and structure.
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संबंधित प्रश्न
State three main characteristics of the particles of matter.
Fill in the blank:
The molecules are made up of ________
Give two examples for the following :
Substances which do not change their states.
What is the approximate size of a molecule?
Describe a simple experiment to illustrate the existence of inter-molecular spacing.
If an object is taken to the moon from the earth what will be its mass?
Differentiate between the following:
Atoms and molecules
Fill in the blank
Molecules in a ............ are packed very closely.
Identify the odd term out and explain.
Gold, silver, copper, brass
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms, very closely packed | A: Solids |
| 2. Interparticle space is maximum | B: Liquids |
| 3. Force of attraction between particles is very weak | C: Gases |
| 4. Movement of particles is about their own position | |
| 5. Particles in the state of matter are slightly compressible and not closely packed. |
