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प्रश्न
The molecules can move freely anywhere in
विकल्प
gases
liquids
solids
none of the above
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उत्तर
gases
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संबंधित प्रश्न
Name the processes involved in two cases.
What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
You are given two liquids, one a solution and the other a compound. How will you distinguish the solution from the compound ?
What happens when the temperature of a saturated sugar solution is increased ?
Fill in the following blank :
A colloid is a ..............mixture and its components can be separated by the technique known as ...............
Explain what happens when a beam of light is passed through a colloidal solution.
Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?
Justify your answer.
| Figure 1 | Figure 2 | Figure 3 |
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The arrangement of particles in three different phases of matter is shown above.
- Which state is represented by Fig. 1?
- In which state will the inter-particle attraction be maximum?
- Which one of them cannot be contained in an open vessel?
- Which one can take the shape of its container?
Which of the following statements are true for pure substances?
(i) Pure substances contain only one kind of particles
(ii) Pure substances may be compounds or mixtures
(iii) Pure substances have the same composition throughout
(iv) Pure substances can be exemplified by all elements other than nickel
Solids possess very high kinetic energy.
