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If the gangue is basic, the flux used is...

If the gangue is basic, the flux used is___

A

`1`.` CaO`

B

`2`.` MgO`

C

`3`. `SiO_2`

D

`4`. `CuO`

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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
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  3. If the gangue is basic, the flux used is

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  6. Arranging metals in the decreasing order of their reactivity is called

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  7. The method suitable for purification of low boiling metals is

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  8. The corrosion of iron object is favoured by

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  9. A process in which the ore is strongly heated in the absence of air or...

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  10. The process of extraction of metals from their ore is called.

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  11. The element or compounds of the metals which occur in nature in the ea...

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  12. Alumium is profitable to extract from

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  13. What are chalcogens? Why are they so called?

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  14. The metal never found in free state is

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  15. The element that does not displace hydrogen from dilute acids is

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  16. To extract the metal, the metallic oxide with

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  17. High reactivity metals are extracted by of their fused compounds.

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  18. Thermite process involve the reaction of metal oxides with

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  19. Suitable impurities are added to the ore to decrease its

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  20. The displacement reactions involving high reactive metals are highly

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