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Oxidation States and Ionization Energies

CHEM-CROVZY

Which of the following statements about the oxidation states and ionization energies are true? Select ALL that apply.

A

Vanadium exists as ${ V }^{ 5+ }$ as it highest oxidation state​.

B

Iron exist as ${ Fe }^{ 4+ }$ within hemoglobin.

C

Chromium is orange​ in color due to its highest oxidation state, ${ Cr }^{ 6+ }$.

D

Manganese exists as ${Mn}^{ 7+}$ as it highest oxidation states, and this is the state present in living organisms.