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प्रश्न
State whether the following statement is true or false :
Sponge is an example of solid sol.
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उत्तर
False. Sponge is an example of solid foam.
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संबंधित प्रश्न
Differentiate between an atom and a molecule.
What are the conditions for 'something' to be called 'matter'?
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
Explain why steel is used to make railway lines.
What is Brownian motion? Draw a diagram to show the movement of a particle (like a pollen grain during Brownian motion.
Give reason why copper metal is used for making electric wires.
One of the following substances is neither a good conductor of electricity nor an insulator. This substance is :
What is the name of the clear liquid formed when a solid dissolves in a liquid ?
Explain what happens when a beam of light is passed through a colloidal solution.
Define Foam Give one example.
The material which is added to water during purification process at the water works so as to disinfect it is :
Which of the following cannot be separated from air by the process of fractional distillation ?
______ is not made of matter.
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?
Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions
Solids possess very high kinetic energy.
Higher the temperature, the higher the kinetic energy of particles.
Define the term matter.
Define the term matter.
