From which of the following reactions can anh | vedclass

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(A) Anhydrous magnesium chloride $(MgCl_2)$ cannot be prepared by simple heating of its hydrated form $(MgCl_2 \cdot 6H_2O)$ because it undergoes hydr

Vedclass · Accepted Answer

$MgCl_2 \cdot 6H_2O +$ current of dry $HCl$

Vedclass · Answer

(A) Anhydrous magnesium chloride $(MgCl_2)$ cannot be prepared by simple heating of its hydrated form $(MgCl_2 \cdot 6H_2O)$ because it undergoes hydrolysis to form magnesium oxychloride $(Mg(OH)Cl)$ and $HCl$.To prevent this hydrolysis,$MgCl_2 \cdot 6H_2O$ is heated in a current of dry $HCl$ gas.The reaction is: $MgCl_2 \cdot 6H_2O \xrightarrow{	ext{dry } HCl 	ext{ gas, heat}} MgCl_2 + 6H_2O$.Therefore,option $A$ is correct.

From which of the following reactions can anhydrous $MgCl_2$ be prepared?

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