Pure anhydrous MgCl_2 can be prepared from th | vedclass

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(D) The hydrated magnesium chloride $(MgCl_2 \cdot 6H_2O)$ undergoes hydrolysis when heated directly,forming $MgO$. To obtain pure anhydrous $MgCl_2$,

Vedclass · Accepted Answer

Heating the hydrate to red heat in an atmosphere of $HCl$ gas

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(D) The hydrated magnesium chloride $(MgCl_2 \cdot 6H_2O)$ undergoes hydrolysis when heated directly,forming $MgO$. To obtain pure anhydrous $MgCl_2$,the hydrated salt is heated to red heat in a stream of $HCl$ gas. The $HCl$ gas shifts the equilibrium to the left,preventing the hydrolysis of $MgCl_2$ into $MgO$ and $HCl$.

Pure anhydrous $MgCl_2$ can be prepared from the hydrated salt by

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