Question

Iron on reaction with hcl from cl2 and not official

Answer 1

When iron is heated in a stream of dry chlorine the product is iron(III) chloride. This happens because chlorine is a powerful oxidising agent so brings out the higher oxidation state of iron:

2Fe+3cl2--2Fecl3

To make iron(II) chloride you can react XS iron with dilute hydrochloric acid

Fe+2hcl--fecl2+h2