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Which of the following reaction is an ex...

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

A

`2Ag + 2HCl + (O) rarr 2AgCl + H_2O`

B

`2Zn + O_2 rarr 2ZnO`

C

`2ZnS + 3O_2 rarr 2ZnO + 2SO_2`

D

`MgCO_3 rarr MgO + CO_2`

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SHARAM PUBLICATION-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
  1. During electrolyte refining of copper some metals present as impurity ...

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

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

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  4. What is benefaction of ore ?

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  5. Name one important ore and alloy copper.

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  6. How slag is formed in metal extraction ?

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  7. What is mean by pyrometallurgy ?

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  8. Name three alloys of Copper

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

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  10. What is difference between mineral and ore ?

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

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  12. Name two collectors used in froth floatation process.

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  13. Name one acidic and one basic flux.

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

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

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  16. An ore of galena (PbS) is contaminated with Zinc blende (ZnS). Name on...

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  17. Which types of ores are roasted ?

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  18. Name the method used for the refining of copper metal.

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  19. Why sulphide ores are concentred by froth floatation process.

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  20. Which process is used for refining of metals which are used as Semicon...

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