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Name the most important ore of aluminium...

Name the most important ore of aluminium.

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**Step-by-Step Solution:** 1. **Identify the Ores of Aluminum**: - The first step is to recognize that aluminum is extracted from various ores. The common ores of aluminum include bauxite, alumina, and cryolite. 2. **List the Composition of Each Ore**: - Bauxite: The chemical formula is Al2O3·2H2O, which indicates that it contains aluminum oxide combined with water. - Alumina: The formula is Al2O3, which is pure aluminum oxide without water. ...
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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. A crude metal is heated with iodine to form metal tetraiodide which is...

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  2. What is the principle of chromatographic separation ?

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  3. Name the most important ore of aluminium.

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

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

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

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

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

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

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  10. Why aluminium acts as a good reducing agent?

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  11. What is anodised aluminium ?

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  12. What is malachite ?

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

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  14. What is blister copper?

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  15. Give the composition of brass and German silver

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

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

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  18. What is galvanization ?

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  19. Give two important uses of zinc metal.

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  20. Name three different forms of iron.

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