Separation of Scrap Iron
Waste materials supplied to factories contain a number of scrap metals including iron. So,in factories, scrap iron is separated from the heap of waste materials by using big electromagnets fitted to a crane.(A magnet which works with an electric current is called an electromagnet). When a crane fitted with a powerful electromagnet is lowered on to the heap of waste materials, then the scrap iron objects present in the heap cling to the electromagnet (see Figure 57). The crane is then moved up and away to drop these scrap iron objects at a separate place. In this way, scrap iron is separated from the heap of waste materials.
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Matter in Our Surroundings - Notes
1. 3. Non-Metals are Bad Conductors of Heat and Electricity.
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2. The Case of a Liquid Solute Dissolved in a Liquid Solvent
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4. 11. Metals Usually Have a Silver or Grey Colour
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8. To Study the Properties of a Colloid
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9. Separation Of Mixture Of a Solid And a Liquids
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12. 7. Non-Metals may be Solid, Liquid or Gases at the Room Temperature.
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14. 11. Non-Metals Have Many Different Colours.
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15. 6. Non-Metals are Not Strong. They Have Low Tensile Strength.
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18. To Study the Properties of a Compound of Iron and Sulphur
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19. 1. Separation by a Suitable Solvent
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27. To Study the Properties of a Solution
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28. 6. Metals are Usually Strong. They Have High Tensile Strength.
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35. 3. Metals are Good Conductors of Heat and Electricity.
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36. Separation of Mixture Of Two Solids
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39. Chemical Formula for daily use material
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43. 7. Metals are Solids at the Room Temperature
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47. To Study the Properties of a Suspension
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48. To Separate a Mixture of Alcohol and Water
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