1.

Dolomite can also be treated to get `MgCl_(2)` which in turn is electrolysed to get `Mg` (Dow natural brine process) . Give reactions for this process.

Answer» `MgCO_(3)overset(Delta)(to)MgCl_(2)+CO`
`MgO+C+Cl_(2)overset(Delta)(to)MgCl_(2)+CO`
At `700^(@)C`,
`MgCl_(2)hArrMg^(2+)+2Cl^(-)`
Cathode : `Mg^(2+)+2etoMg`
Anode : `2Cl^(-)`-2etoCl_(2)uarr`


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