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Question

$+4$ is the most stable oxidation state of vanadium and titanium. Mn $^{3+}$ is not stable. $\mathrm{Mn}^{2+},$ rather than $\mathrm{Mn}^{3+}$ is much

Vedclass · Accepted Answer

$Cr^{3+}$

Vedclass · Answer

$+4$ is the most stable oxidation state of vanadium and titanium. Mn $^{3+}$ is not stable. $\mathrm{Mn}^{2+},$ rather than $\mathrm{Mn}^{3+}$ is much more stable in aqueous solution. For chromium, $+3$ oxidation state is most stable in aqueous solution.

Which one of the following ions is the most stable in aqueous solution?

(At. No. $Ti = 22, V = 23, Cr = 24, Mn = 25$)

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