Iron reacts with Cl2 to give ‘X’ and Iron reacts with HCl to give ‘Y’.  ‘X’ and ‘Y’ are respectively

1) 2Fe+3Cl2→ 2FeCl3(X);Cl2 is a good oxidant. It oxidizes the initially formed FeCl2 to FeCl3; All metals react with chlorine to form “ic” chlorides(higher chlorides).2) Fe+2HCl→ FeCl2(Y)+H2;H2 is a good reducing agent. It does not allow Fe+2 (of FeCl2) to get oxidized.