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प्रश्न
Give two examples for the following :
Substances which do not change their states.
एक शब्द/वाक्यांश उत्तर
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उत्तर
Paper, sugar.
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Composition of Matter
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संबंधित प्रश्न
Define: Solid
Fill in the blank:
The molecules are made up of ________
Classify the following into solid, liquid and gas:
Coal, kerosene, wood, oxygen, sugar, blood, water vapour, milk, wax.
Define the following term Element .
Differentiate between the following.
Atoms and Molecules .
State whether the following statement is True or False:
Only water can exist in three different states
Select the correct alternative
The inter-molecular forces in liquids are
What do you mean by inter-molecular forces?
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. |
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
