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Delta G^@ - T plot in Ellingham 's diagr...

`Delta G^@` - T plot in Ellingham 's diagram slopes are downward for the reaction.

A

`Mg + 1/2 O_2 rarr MgO`

B

`2Ag + 1/2 O_2 rarr Ag_2O`

C

`C+ 1/2 O_2 rarr CO`

D

`CO + 1/2 O_2 rarr CO_2`

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SHARAM PUBLICATION-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
  1. An ore after levigation is found to have acidic impurities. Which of t...

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  2. When limestone is heated, carbon dioxide is given off. This operation ...

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  3. Delta G^@ - T plot in Ellingham 's diagram slopes are downward for the...

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  4. Which of the following pairs of metals is purified by Van Arkel metho...

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  5. Identify an alloy containing a non- metal as a constituent in it.

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  6. During electrolyte refining of copper some metals present as impurity ...

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  7. According to Ellingham diagram, the oxidation reaction of carbon to ca...

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  8. Which of the following reaction is an example of calcination process ?

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  9. What is benefaction of ore ?

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  10. Name one important ore and alloy copper.

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  11. How slag is formed in metal extraction ?

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  12. What is mean by pyrometallurgy ?

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  13. Name three alloys of Copper

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  14. The ore that can be concentrated by magnetic separation method, are .....

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  15. What is difference between mineral and ore ?

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  16. Name the deprassant which is used to separate ZnS from PbS ores in fro...

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  17. Name two collectors used in froth floatation process.

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  18. Name one acidic and one basic flux.

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  19. Why do some metals occur in the native state ?

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  20. What is the role of stabilizer in froth floatation process ?

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