Question
Download Solution PDFThe most stable vanadium species in aqueous medium is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
→ In aqueous medium, vanadium exists in various oxidation states and coordination numbers, depending on the pH and other conditions.
→ The [VO(H2O)5]2+ ion consists of a central vanadium(V) ion coordinated to five water molecules in an octahedral arrangement, with one oxygen atom of the vanadyl group (VO2+) completing the coordination sphere.
→ This arrangement is stabilized by the strong electrostatic attraction between the positively charged vanadium ion and the negatively charged oxygen atom of the vanadyl group, as well as the favorable interaction between the vanadium ion and the surrounding water molecules.
→ Other vanadium species, such as [VO(H2O)5]2+, [VO(H2O)5]+, and [V(H2O)4(OH)2]2+, may also exist in aqueous medium under certain conditions, but they are less stable than [VO(H2O)5]2+.
Conclusion: However, [VO(H2O)5]2+ is the most stable vanadium species in aqueous solution under normal conditions.
Last updated on Jul 8, 2025
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