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Match the items of Column I with items o...

Match the items of Column I with items of Column II and assign the correct code:
`{:(ColumnI,ColumnII),((A)"Blisterred Cu",(1)"Aluminium"),((B)"Blast furnace",(2)2Cu_(2)O +Cu_(2)S rarr 6Cu +SO_(2)),((C)"Reverberatory furnace",(3)Iron),((D)"Half-Heroult process",(4)FeO +SiO_(2) rarr FeSiO_(3)),(,(5)2Cu_(2)S +3O_(2) rarr 2Cu_(2)O +2SO_(2)):}`

A

A (2) B (3) C (4) D (1)

B

A (1) B (2) C (3) D (5)

C

A (5) B (4) C (3) D (2)

D

A (4) B (5) C (3) S (2)

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ALLEN-METALLURGY-EXERCISE -04
  1. Why is sulphide ore of copper heated in a furnance after mixing with ...

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  2. Sulphdies ores are converted to oxides before reduction . This is expl...

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  3. Which method is used for refining Zr and Ti ? Explain with equation.

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  4. What should be the considering during the extraction of metal by elect...

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  5. What is the role of flux in metallurgical processes?

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  6. How are metals used as semiconductors refined ? What is the principle ...

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  7. Write down the reaction taking place in blast furnance related to the ...

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  8. Give two requirements for vapour phase refining.

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  9. Write the chemical reactions involved in the process of extraction of ...

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  10. Match the items of column I with items of column II and assign the cor...

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  11. Match the items of Column I with the items of Column II and assign the...

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  12. Match items of Column I with the items of Column II and assign the co...

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  13. Match the items of Column I with the items of Column II and assign t...

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  14. Match the items of Column I with items of Column II and assign the cor...

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  15. Assertion (A) Nickel can be purified by Mond's process. Reason ( R) ...

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  16. Assertion (A) Zirconium can be purified by van Arkel method. Reason...

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  17. Assertion (A) Sulphide ores are concentrated by froth floatation metho...

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  18. Assertion (A) Zone refining method is verty useful for producing semic...

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  19. Assertion (A) Hydrometallurgy involves dissolving the ore in a suitabl...

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  20. Explain the following (a) CO(2) is a better reducing agent below 7...

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