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State whether the following statements a...

State whether the following statements are true or false, correct the false statements.
The minerals from which the metals can be separated economically are called ores.

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ores
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NAVNEET PUBLICATION-METALLURGY-EXERCISE
  1. is the hardest natural subtance.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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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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