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Highly electropositive metals can not he...

Highly electropositive metals can not he extracted by carbon reduction process because these

A

metals do not react with carbon

B

metal oxides are not reduced by carbon

C

metals from carbides

D

metals are not reduced by carbon

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BEYOND PUBLICATION-PRINCIPLES OF METALLURGY-EXERCISE
  1. Specific gravity of slag is always :

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  2. Polling process is employed for the removal of

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  3. Highly electropositive metals can not he extracted by carbon reduction...

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  4. Tamishing of silver is due to the presence of this gas in air……..

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  5. Pyrochemical processes in metallurgy are carried out in structure call...

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  6. The following metal is obtained by the auto reduction of its sulphide ...

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  7. Name the common elements present in the anode mud in the eletrolytic r...

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  8. Rusting of iron takes place in

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  9. The principle behind froth floatation is :

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  10. In Goldschmit alumino thermic process, thermite mixture is :

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  11. In the metallurgical extraction of iron, which of the following proces...

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  12. During the electrolysis of molten salts, the metals are always produce...

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  13. Arrange the following metals in the order of their decreasing reactivi...

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  14. The corrent decreasing order of the reactivity of the metals : Fe, Co,...

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  15. Roosting is carried out to

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  16. Which is correct in the following ?

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  17. Which is not feasible ?

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  18. Food cans are coated with tin and not with zinc because

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  19. Copper do not displacefrom dilute acids

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  20. Aluminium foli is used fro wrapping food because :

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