Q. Identify the incorrect statement.
A \(\mathrm{Cr}^{2+}\left(d^{4}\right)\) is a stronger reducing agent than \(\mathrm{Fe}^{2+}\left(d^{6}\right)\) in water.
B The transition metals and their compounds are known for their catalytic activity due to their ability to adopt multiple oxidation states and to form complexes.
c Interstitial compounds are those that are formed when small atoms like \(\mathrm{H}, \mathrm{C}\) or \(\mathrm{N}\) are trapped inside the crystal lattices of metals.
(D) The oxidation states of chromium in \(\mathrm{CrO}_{4}^{2-}\) and \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\)
