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How many metals are commercially extract...

How many metals are commercially extracted by electrometallury form the given metals ?
`Al, Mg, Na, K, Ag, Hg, Ti, Th,Zr,B`.

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The correct Answer is:
`(4)`
`Al,Mg,Na,Ti`
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CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Integer)
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  4. How many ores are sulphide ores from the given ores ? Azurite, chalc...

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  5. How many metals are commercially purified by Van Arkel method from the...

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  6. How many metals are commercially purified by electrolysis method from ...

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  7. Find the number of following reactions which are involved in roasting ...

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  8. Find the number of reaction from the given reaction which can show cal...

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  9. How many metallic ores are concentrated by magnetic separation method ...

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  10. Find the number of metal oxides which are decomposed on normal heating...

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  11. Find the number of basic flux from the given compounds : SiO(2), MgO...

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  12. Find the number of metals from the given metals which can be commercia...

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  13. How many metals are commercially extracted by pyrometallurgy from the ...

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  14. Find the number of acidic flux from the given compounds : CaCO(3), N...

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  15. How many reaction can show slag formation process from the given react...

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  16. How many metals are commercially extracted by electrometallury form th...

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  17. How many metals are commercially extracted by hydrometallurgy from the...

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  18. How many metals are commercially reduced by Goldschmidt's aluminotherm...

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  19. Find the number of metals which are commercially reduced by self-reduc...

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  20. Find the number of metals which are commercially by carbon reduction m...

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