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Why is sodium kept immersed in kerosene ...

Why is sodium kept immersed in kerosene oil?

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Sodium is kept immersed in kerosene oil because potassium and sodium react so vigorously that they catch fire if kept in the open. Thus, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil.
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Name a metal which is kept immersed in kerosene oil. Why is it kept this way ?

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Give an example of a metal which (i) is a liquid at room temperature. (ii) is kept immersed in kerosene for storing. (iii) is both malleable and ductile. (iv) is the best conductor of heat.

OSWAL PUBLICATION-METALS AND NON-METALS-NCERT Corner (Intext Questions)
  1. A metal which is a poor conducton of heat

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  2. Explain the meanings of malleable and ductile.

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  3. Why is sodium kept immersed in kerosene oil?

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  4. Write equation for the reaction of iron with steam.

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  5. Write equations for the reactions of Calcium and potassium with wate...

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  6. Samples of four metals A, B, C and D were taken and added to the follo...

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  7. Samples of four metals A, B, C and D were taken and added to the follo...

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  8. Samples of four metals A, B, C and D were taken and added to the follo...

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  9. Which gas is produced when dilute hydrochloric acid is added to a reac...

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  10. What would you observe when zinc is added to a solution of iron (II) s...

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  11. Write the electron dot structures of sodium, oxygen and magnesium.

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  12. Show the formation of Na(2)O and MgO by the transfer of electrons.

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  13. What are the ions present in these compounds? Na(2)O and MgO.

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  14. Why do ionic compounds have high melting points?

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  15. Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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  16. Define the following terms. Ore

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  17. Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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  18. Name two metals which are found in nature in the free state.

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  19. What chemical process is used for obtaining a metal from its oxide?

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  20. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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