Rishi Sharma
Dear Student,
Please find below the solution to your problem.
White fumes is due to the presence of HCl gas.Anhydrous aluminium chloride is hydrolysed partly with the moisture in the atmosphere to give HCl gas. This HCl combines with the moisture in the air appears white in colour.
AlCl3 +3H2O ------Al(OH)3 +3HCl(white fume)
Thanks and Regards