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प्रश्न
How will you separate a mixture of iron filings and powdered carbon ?
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उत्तर
We can separate a mixture of iron filings and powdered carbon by using a magnet. The principle behind the separation of iron fillings and powdered carbon is the property of iron to get attracted by magnets. When the magnet is brought close to the mixture, iron fillings are attracted by the magnet and get collected on the surface of the magnet. In the process, powdered carbon is left behind as residue.
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संबंधित प्रश्न
Define the following term of Atom .
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- shrinking of grapes kept in thick sugar syrup
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State two physical properties on the basis of which metals can be distinguished from non-metals.
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which one has the largest particles ?
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Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
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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.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which exists as a liquid at room temperature.
Higher the temperature, the higher the kinetic energy of particles.
The phenomenon of Evaporation takes place at the ______ of a liquid.
Define the term matter.
