Magnesium is extracted from carnallite by: (a) The self-reduction process. (b) The carbon-reduct...

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Magnesium is extracted from carnallite by:
(a) The self-reduction process.
(b) The carbon-reduction process.
(c) The electrolytic process.
(d) Treating the ore with aqueous \( \mathrm{NaCN} \) and then reducing the mixture.
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