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State True/False Metals can be recover...

State True/False
Metals can be recovered from their ores by chemical methods.

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Knowledge Check

  • The metal which can be extracted from the bauxite ore is:

    A
    Malachite -Cu
    B
    Calamine-Zn
    C
    Chromite -Cr
    D
    Dolomite -Al
    • ALLEN-METALLURGY-EXERCISE-03
    1. State True/False Metals can be recovered from their ores by chemical...

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    2. Sulphide ore of copper can be concentrated by

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    3. Which of the following metal is purified by distilation process?

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    4. Highly pure metals can be obtained by zone refining.

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    5. Zinc carbonate is precipitated from zinc sulphate solution by the addi...

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    6. The slag obtained during the extraction of copper pyrites is compose...

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    7. In calcination, ore is heated with absence of air

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    8. A number of elements are available in earth's crust but most abundant ...

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    9. Pitch blende is an ore of

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    10. In the metallurgical process for electrorefining of the metal, the ano...

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    11. In a thermite process ………….. Is used as reducing agent.

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    12. The mineral ilmenite contains .........and...........metal

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    13. Answer the following questions briefly. What is the actual reducing...

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    14. Bessemer converter is used for manufacture of

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    15. The transition metal present in the alloy gun metal is .

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    16. The slag obtained during the extraction of copper pyrites is compose...

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    17. If a spoon of copper metal is placed in a solution of ferrous sulphate...

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    18. {:(Column-I(Ore),Column-II("Created formula & properties")),((A)"Iron ...

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    19. {:(Column-I("Metal"),column-II),((A)"Magnesite",(p)"Ore of magnesium")...

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    20. {:(Column-I(Ore),Column-II),((A)"Iron",(p)"Carbon reduction method"),(...

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