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(i) Name the most common ore of the meta...

(i) Name the most common ore of the metal aluminum from which the metal is extracted. Write the chemical formula of the ore. (ii) Name the process by which impure ore of aluminum gets purified by using concentrated solution of an alkali. (iii) Write the equation for the formation of aluminum at the cathode during the electrolysis of alumina.

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Name the process by which impure ore of aluminium gets purified by using concentrated solution of an alkali.

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The ore from which aluminium is extracted must first be treated with solution so that pure aluminium oxide can be obtained. Name the ore and solution

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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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