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When bauxite ore contains considerable a...

When bauxite ore contains considerable amount of silica as an impurity, which process is used for the purification of bauxite ore?

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Serpeck.s process
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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. What is the principle of chromatographic separation ?

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  2. Name the most important ore of aluminium.

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  3. When bauxite ore contains considerable amount of silica as an impurity...

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  4. Name two alloys of aluminium and give their composition.

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  5. What is the composition of ignition mixture used in aluminothermy?

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  6. Which process is used to convert pure alumina into aluminium.

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  7. Why cryolite is mixed with alumina during its electrolysis?

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  8. What is the purpose of adding a small amount of CaF2 to alumina during...

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  9. Why aluminium acts as a good reducing agent?

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  10. What is anodised aluminium ?

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  11. What is malachite ?

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  12. List the name and formulae of two important ores of copper.

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  13. What is blister copper?

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  14. Give the composition of brass and bronze

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  15. What are the constituents of anode mud formed during electrolytic refi...

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  16. Which metal is used to protect the iron sheets from rusting by a proce...

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  17. What is galvanization ?

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  18. Give two important uses of zinc metal.

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  19. Name three different forms of iron.

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  20. Out of cast iron and wrought iron, which is more malleable?

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