From which of the following reactions can anh | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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?

Similar Questions

An element reacts with hydrogen to form a compound $A$,which on treatment with water liberates hydrogen gas. The element can be

Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?

Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?

The metal $X$ is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen gas is released on treatment with water. The metal is

Write the preparation,properties,and uses of calcium carbonate $(CaCO_3)$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module