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Anodes need do be replaced from time to time during the electrolysis of alumina

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Give scientific reasons: Anodes need to be replaced from time to time during the electrolysis of alumina

Give scientific reasons for the following: Anodes need to be replaced from time to time during the electrolysis of alumina.

The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60 xx 10^(-19)C )

The overall reaction taking place at anode during electrolysis of fused sodium chloride using suitable electrode is __________.

Fill in the blanks : During the electrolysis of alumina ,………….. Is liberated at the anode.

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  5. Give scientific reasons: Sodium is always kept in kerosene

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  10. Draw a neat and labelled diagram Magnetic separation method

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  11. Draw a neat and labelled diagram Froth floatation method

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  12. Draw a neat labelled diagram. Electrolytic reduction of alumina.

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