Question

What is the oxidation state of vanad.iumin VrO, and in VO2+ ?

Answer 1

Obtain 25 mL of ammonium metavanadate solution (in 2 M H2SO4) in a 50-mL Erlenmeyer flask. The solution is yellow, which indicates that the vanadium is in the form of VO2+. What is the oxidation state of vanadium in this solution? )))))))) this is just a example////Be careful, since there are two vanadium ions written as VO2+. One of them is (VO2)+, or vanadyl(V), and the other is VO(2+), which is vanadyl(IV). Vanadyl(V) is yellow and vanadyl(IV) is blue, so I guess you meant (VO2)+. THe oxidation state of vanadium plus the oxidation states of the two oxygen atoms (2 × -2 = -4) must equal the charge of the ion (+1), so the vanadium atom is in its +5 oxidation state.

I hope this will help you