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Reduction of metal oxides by aluminium m...

Reduction of metal oxides by aluminium metal is called………..

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Fill in the blanks : For reduction of metal oxide to metal Delta G must be …………..

Aluminium metal is extracted by

Aluminium metal is extracted by

Why is the reduction of a metal oxide easier, if the metal formed is in liquid state at the temperature of reduction?

The process in which metal oxide is reduced to metal is called

The metal that cannot be produced on reduction of is oxide by aluminium is :

The process in which metal is obtained in molten state is called as of the

ARIHANT PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ODISHA BUREAU.S TEXTBOOK SOLUTIONS (FILL IN THE BLANKS TYPE QUESTIONS )
  1. Sulphide ores are generally concentrated by

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  2. The process of heating ore in the absence or limited supply of air, is...

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  3. Roasting is heating of ore in presence of ……………… of air.

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  4. Minerals, from which metal can be extracted economically, are called …...

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  5. The art of extracting metals from their ores is called ……………

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  6. The process of removal of gangue or matrix from the ore is known as ……...

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  7. Coke used during smelting of iron acts as fuel as well as ……………… agen...

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  8. Substance used during smelting to remove gangue in the form of slag, i...

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  9. The flux combines with the gangue to form fusible mass, called…………..

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  10. The process of purification of metals to get extra-pure metals is know...

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  11. Highly electropositive metals such as alkaline earth's are extracted b...

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  12. In electrolytic refining, the crude metal is made………………

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  13. Reduction of metal oxides by aluminium metal is called………..

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  14. During carbon reduction process, an additional substance added to get ...

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  15. The flux combines with the gangue to form fusible mass, called…………..

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  16. Calcination helps to remove ……….. And ……….

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  17. Na//Hg is prepared in order to decrease the…………... It is also used as ...

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