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The following is a sketch of an electrol...

The following is a sketch of an electrolytic cell used in the extraction of aluminium :
(i) What is the substance of which the electrodes of aluminium:
(ii) At which electrode (A or B) is the aluminium formed
(iii) What are the two aluminium compounds in the electrolyts C.
(iv) Why is it necessary for electrode B to be continuously replaced

Text Solution

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Alumin `(Al_(2)O_(3))` and cryollite `(Na_(3)AIF_(6))`.
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ICSE-SAMPLE QUESTION PAPER -4-SECTION - II
  1. The following is a sketch of an electrolytic cell used in the extracti...

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  2. The following is a sketch of an electrolytic cell used in the extracti...

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  3. The following is a sketch of an electrolytic cell used in the extracti...

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  4. The following is a sketch of an electrolytic cell used in the extracti...

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  5. Following is the sketch of electrolytic cell used in the extraction ...

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  6. Copy and Complete the following table related to electrolysis :

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  7. Differentiate between the terms strong electrolyte and weak electrolyt...

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  8. Choose the most appropriate answer from the following list of oxides w...

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  9. Calculate the percentage of Nitrogen in aluminium nitride . (Al = 27...

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  10. A compound has the following percentage composition by mass: Carbon - ...

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  11. Dilute nitric acid is generally considered a typical acid but not so i...

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  12. Concentrated nitric acid appears yellow when it is left standing in a ...

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  13. Explain the following : All glass apparatus is used in the labo...

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  14. With respect to the laboratory preparation of hydrochloric acid ans...

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  15. With respect to the laboratory preparation of hydrochloric acid ans...

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  16. With respect to the laboratory preparation of hydrochloric acid ans...

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  17. In the laboratory preparation of hydrochloric acid, HCl gas is dissolv...

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  18. With respect to the laboratory preparation of hydrochloric acid ans...

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  19. Name the method used for obtaining ammonia on a large scale .

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  20. What is the actual ratio of the reactants ?

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