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Which of the following ions is the most ...

Which of the following ions is the most stable in aqueous solution ?
`(At . No . Ti = 22, V = 23, Cr = 24, Mn = 25)`

A

`Cr^(3+)`

B

`V^(3+)`

C

`Ti^(3+)`

D

`Mn^(3+)`

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The correct Answer is:
D
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