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Explain why : In the electrolysis of ...

Explain why :
In the electrolysis of alumina using the Hall Heroult's Process, the electrolyte is covered with powdered coke.

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Explain the process of electrolysis.

Electrolytic reduction of alumina to aluminum by the Hall-Heroult process is carried out

Explain why : In the electrolysis of molten alumina, the carbon anode is gradually consumed.

Hall-Heroult's process is given by :

On the electrolysis of an aqueous solution of NaF using the gram equivalence of an electrolyte

Which electrode is used as anode in hall heroult process?

In the electrolytic reduction of pure alumina to pure aluminium - by Hall Herault's process, give the electrolytic reaction involved in the same, resulting in formation of aluminium at the cathode.

Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out:

Name the electrolyte used in this process.

Answer the following questions based on the ectraction of aluminium from alumina by Hall - Heroult's Process. Why is powdered coke sprinked on top of the electrolyte.

ICSE-METALLURGY-QUESTIONS FROM PREVIOUS ICSE BOARD PAPERS
  1. Name the The ore of zinc containing its sulphide.

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  2. This is not an alloy of copper :

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  3. Give appropriate scientific reasons for the following statements: Z...

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  4. For each of the substance listed below, describe the role played in th...

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  5. Explain why : In the electrolysis of alumina using the Hall Heroult...

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  6. Explain why : Iron sheets are coated with zinc during galvanization.

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  7. The two main metals in Bronze are :

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  8. Identify the term/substance of the following: The method used to separ...

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  9. (i)Name the solution used to react with Bauxite as a first step in obt...

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  10. From the list of terms given, choose the most appropriate term to matc...

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  11. Name the The process of coating of iron with zinc.

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  12. Name the An alloy of lead and tin that is used in electrical circui...

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  13. Name the An ore of zinc containing its sulphide.

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  14. Name the A metal oxide that can be reduced by hydrogen.

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  15. Complete the following by selecting the correct option from the choice...

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  16. Complete the following by selecting the correct option from the choice...

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  17. Give one word or a phrase for the following statement: The process by ...

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  18. Fill up the blank with the correct choice given in bracket. The most c...

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  19. Name the main component of the following alloys : (i) Brass (ii) Du...

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  20. (i) Name the most common ore of the metal aluminum from which the meta...

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