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The following questions relate to the ex...

The following questions relate to the extraction of aluminium by electrolysis :
Name the other aluminium containing compound added to alumina and state its significance.

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Cryolite
Molten cryolite acts as solvent for alumina and also lowers the fusion temperature from `2050^(@)C` to `950^(@)C` and enhances conductivity and thereby saves electrical energy.
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The following question relate to the extraction of aluminium by electrolysis: Name the other aluminium containing compound added to alumina and state its significance.

The following question relate to the extraction of aluminium by electrolysis. Name the other aluminium-containing compound added to alumina and write its significance.

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ICSE-CHEMISTRY-2013-SECTION-II (40 Marks)
  1. Give balanced equations for Dehydration of concentrated sulphuric ac...

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  2. Copy and complete the following table relating to important industrial...

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  3. The following questions relate to the extraction of aluminium by elect...

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  4. The following questions relate to the extraction of aluminium by elect...

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  5. The following questions relate to the extraction of aluminium by elect...

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  6. Give balanced chemical equation for the preparation of the following o...

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  7. Give balanced equations for the laboratory preparations of butene from...

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  8. Give balanced equations for the laboratory preparations of the organi...

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  9. Give balanced equations for the laboratory preparations of. i] A satu...

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  10. Give the structural formula of each of the isomer of butane

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  11. Give the structural formulae for the following An isomer of n-butane...

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  12. Draw the structural formula for the diethyl ether

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  13. Give reasons for Methane does not undergo addition reactions, but et...

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  14. Give reasons for the following : (i) Methane does not undergo addit...

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  15. Give reasons why? Hydrocarbons are excellent fuels.

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  16. O(2) is evolved by heating KClO(3) using MnO(2) as a catalyst 2KClO(...

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  17. O(2) is evolved by heating KClO(3) using MnO(2) as a catalyst 2KClO(...

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  18. O(2) is evolved by heating KClO(3) using MnO(2) as a catalyst 2KClO(...

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  19. Identify the following substance which is underlined: An <u>alkaline g...

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  20. Identify the following substance which is underlined: An acid which is...

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