What is demineralised water? How is it obtained? from Chemistry
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    Hydrogen

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    41.

    What is demineralised water? How is it obtained?

    Water which does not contain cations and anions is called demineralised water. It is obtained by passing ordinary water through an exchange resin.
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    42.

    How is heavy water produced from ordinary water?

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    43.

    Explain why electrolysis of ordinary water occurs faster than heavy water.

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    44.

    Give two advantages of using hydrogen as a fuel over gasoline. 

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    45.

    What is the starting material for the manufacture of H2O2 by electrolysis by a most modern method?

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    46.

    How do we prepare H2O2 by reaction between BaO2.8H2O and dilute sulphuric acid ?

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    47.

    What is the defect of permutit method?

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    48.

    What is the structure of H2O2?

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    49.

    What is perhydral?

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    50.

    How saline hydride react with water ?

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