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Have you observed the following things ?...

Have you observed the following things ?
Old iron bars in the buildings ?

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NAVNEET PUBLICATION-METALLURGY-EXERCISE
  1. Have you observed the following things ? Old iron bars in the buildi...

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  2. has the highest melting point.

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  3. Fill in the blanks : Mercury and ………… are two metals in the liquid s...

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  4. is the hardest natural subtance.

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  5. Fill in the blanks : The natural occurring compounds of metals along...

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  6. State whether the following statements are true or false, correct the ...

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  7. Fill in the blanks : An ore contains some of the impurities like soi...

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  8. Fill in the blanks : The process of extraction of a metal from its or...

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  9. Fill in the blanks : Bauxite is a common ore of…………..

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  10. Fill in the blanks : …………. process is used for the purification of b...

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  11. Fill in the blanks : During the electrolysis of alumina ,………….. Is li...

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  12. Fill in the blanks : The reaction of iron oxide with aluminium is kn...

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  13. Fill in the blanks : The process of coating a thin layer of zinc on i...

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  14. Fill in the blanks : The metal that produces a sound on striking a h...

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  15. Fill in the blanks : The process in which carbonate ores are changed...

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  16. Fill in the blanks : …………………. Compounds are insoluble in solvents lik...

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  17. Fill in the blanks : ………….. Is used to obtain pure metals from impure...

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  18. Fill in the blanks : Corrosion can be prevented by putting a layer o...

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  19. Choose the correct alternative and write it along with its allotted al...

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  20. Choose the correct alternative and write it along with its allotted al...

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  21. Choose the correct alternative and write it along with its allotted al...

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