State the function of (i) Sodium hydroxi...

State the function of (i) Sodium hydroxide (ii) Cryolite (iii) Fluorspar - in the metallurgy of aluminium in Hall Herault's process.

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Give the (i) common (ii) chemical name (iii) formula of two common ore...
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In the extraction of aluminium from bauxite the first step is the dres...
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State the function of (i) Sodium hydroxide (ii) Cryolite (iii) Fluorsp...
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