Thus Cr(VI) in the form of dichromate
in acidic medium is a strong oxidising agent, whereas MoO3 and WO3
are not Low oxidation states are found when a complex compound has
ligands capable of p-acceptor character in addition to the s-bonding For example, in Ni(CO)4 and Fe(CO)5, the oxidation state of nickel and
iron is zero Name a transition element which does not exhibit variable
oxidation states