C-06-Q126mediumsingle_mcqBalanced equation of Al2O3+HCl→AlCl3+H2O\mathrm{Al_2O_3 + HCl \to AlCl_3 + H_2O}Al2O3+HCl→AlCl3+H2O is—aAl2O3+6HCl→2AlCl3+3H2O\mathrm{Al_2O_3 + 6HCl \to 2AlCl_3 + 3H_2O}Al2O3+6HCl→