Pure anhydrous `MgCl_(2)` can be prepared from the hydrated salt byA. heating the hydrate to red heat in the atmosphere of HCl gasB. melting the hydrateC. heating the hydrate with cokeD. heating the hydrate with Mg ribbon.

Pure anhydrous `MgCl_(2)` can be prepared from the hydrated salt byA.

1.	Pure anhydrous `MgCl_(2)` can be prepared from the hydrated salt byA. heating the hydrate to red heat in the atmosphere of HCl gasB. melting the hydrateC. heating the hydrate with cokeD. heating the hydrate with Mg ribbon.
Answer» Correct Answer - A By heating the hydrate to red heat in the atmosphere of HCl gas. On simple heating, hydrolysis takes place. Hence, to prevent hydrolysis, dry HCl gas is used.

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Pure anhydrous `MgCl_(2)` can be prepared from the hydrated salt byA. heating the hydrate to red heat in the atmosphere of HCl gasB. melting the hydrateC. heating the hydrate with cokeD. heating the hydrate with Mg ribbon.

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