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Question

The product obtained when MgCl2.6H2O is strongly heated is :

A
MgCl2
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B
MgO
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C
MgCl2.2H2O
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D
MgCl2.4H2O
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Solution

The correct option is B MgO
On heating MgCl2.6H2O, it gets hydrolysed by its own water of crystallization to an oxychloride.
MgCl2.6H2OMgO+2HCl+5H2O

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