Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other in

T i^{+}, T i^{3 +}

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C u^{+}, C u^{2 +}

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C r^{2 +}, C r^{3 +}

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V^{2 +}, V O^{2 +}

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Solution

The correct option is B $C u^{+}, C u^{2 +}$
$C u^{+} : [A r] 3 d^{10}$ have fullfilled d orbital so it is more stable than +2 oxidation state.

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Similar questions

Which one of the following ions is the most stable in aqueous solution?
(Atomic number. Ti = 22, V = 23, Cr = 24, Mn = 25)

M n^{3 +}, C r^{3 +}, V^{3 +}

T i^{3 +}

^{3 +}

{C u}^{2 +}

{C u}^{+}

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