p-Block elementsHard

Question

Which reaction cannot give anhydrous AlCl3 ?

Options

A.Heating of AlCl3.6H2O
B.Passing dry HCl over heated aluminium powder
C.Passing dry Cl2 over heated aluminium powder
D.Heating a mixture of alumina and coke in a current of dry Cl2

Solution

AlCl3.6H2O Al2O3 + 6HCl + 3H2O.

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