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प्रश्न
Which one is a kind of matter:
विकल्प
light
petroleum
sound
heat
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उत्तर
petroleum
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संबंधित प्रश्न
The molecules can move freely anywhere in
Define the term matter. What is it composed of?
Fill in the blank :
The state of matter with definite volume and definite shape is called______
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
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Hydrogen, Oxygen, Steam, Chlorine
Name the process by which the various gases of the air are separated.
Write a method to separate a mixture of sand and potash alum.
How will you separate a mixture of iron filings and powdered carbon ?
How is the impurity of iron present in several substances removed in industries ?
How will you separate water from mustard oil ?
The dyes present in fountain pen ink can be separated by the technique of :
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
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?
Diffentiate between absorption and adsorption.
A teabag placed in a cup of hot water will diffuse into the water.
Define the term matter.
