In the following equation of reaction, supply the coefficients
xAl+yHCl⟶aAl3++bCl−+cH2
x-2; y-6; a-2; b-6; c-3
x-2; y-6; a-2; b-3; c-6
x-2; y-2; a-6; b-6; c-3
x-3; y-3; a-6; b-6; c-2
2Al+6HCl→2Al+3+6Cl-+3H2