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Write any two differences between electr...

Write any two differences between electric conductors and insulators.

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VGS PUBLICATION-BRILLIANT-METALS AND NON-METALS-EXERCISE
  1. Why are bells made up of metals instead of wood?

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  2. Give two uses of aluminium .

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  3. Write any two differences between electric conductors and insulators.

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  4. Write any four uses of metals in different situations.

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  5. Prepare a table of various metals and non-metals used in our daily lif...

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  6. Why are aluminium foils used to wrap food items ?

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  7. Give reasons for the following : Immersion rods for heating liquids ar...

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  8. Copper cannot displace zinc from its salt solution. Give reason.

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  9. Sodium and potassium are stored in kerosene. Why?

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  10. Give reasons for the following : Silver is used in making mirrors.

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  11. Why aluminium is used to make electrical wires?

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  12. Why do curd and sour substances not be kept in copper vessels ?

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  13. Why do we use iron in constructing bridges and houses?

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  14. What are the major differences between metals and non-metals?

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  15. Carbondioxide does not support combustion but a burning magnesium ribb...

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  16. The compound formed when magnesium ribbon is burnt in oxygen is-

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  17. Why does the colour of copper sulphate solution change when an iron na...

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  18. Draw a diagram of an activity of heat conduction by metals.

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  19. Why some metals are used for making cooking vessels?

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  20. Which One of the following is not a metal ?

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