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Give reasons for the following : Copper...

Give reasons for the following : Copper cannot displace zinc from its salt solution..

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MBD-MATERIALS: METALS AND NON-METALS-EXAMPLE
  1. Give reasons: Aluminium foils are used to wrap food items.

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  2. Give reasons: Immersion rods for heating liquids are made up of metal...

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  3. Give reasons for the following : Copper cannot displace zinc from it...

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  4. Give reasons for the following : Sodium and pottasium are stored in k...

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  5. Can you store lemon pickle in an aluminium utensil? Explain.

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  6. Fill in the blanks:

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  7. What happens when: Dilute sulphuric acid is poured on a copper plate?

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  8. What happens when: Iron nails are placed in a copper sulphate solutio...

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  9. Saloni took a piece of burning charcoal and collected the gas evolved ...

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  10. Saloni took a piece of burning charcoal and collected the gas evolved ...

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  11. One day Reeta went to a jeweller 's shop with her mother. Her mother g...

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  12. In order to kept the flow of electricity continue in circuit, which of...

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  13. Sodium metal is stroed…………..

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  14. When strip of iron is placed in moist air then after some days a layer...

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  15. Which of the following statements is correct?

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  16. Which of the following is a non-metal?

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  17. Phosphorus is stored in:

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  18. The metal which is found in liqiud form is:

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  19. Which metal is a good conductor of electricity and heat ?

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  20. The best conductor of electricity is:

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