Anhydrous ferric chloride is prepared by:

Anhydrous feric chloride is prepared by:

Anhydrous feric chloride is prepared by:

Explain : Anhydrous magnesium chloride is prepared by heating MgCl_2 . 6H_2O in a current of dry HCl gas.

Anhydrous formic acid is prepared by:

Anhydrous aluminium chloride is prepared by

Anhydrous aluminium chloride is prepared by