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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
Water cycle is an example of inter conversion of states of water. Explain.
Give two examples for the following :
Substances which do not change their states.
Fill in the blank
All the molecules of a substance are .............
The molecules in a substance are in motion. What type of path do they follow?
Fill in the blank
Molecules in a ............ are packed very closely.
Write true or false for the statement. Rewrite the false statement correctly.
Solids and liquids can flow.
Match the following
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Gaps between particles. |
| (e) Intermolecular space | (v) Changes of state from solid to gas. |
Multiple choice question.
Which one is a kind of matter:
Write scientific reason.
Lemon sherbat has a 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.
