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

Options

A. `Cr^(3+)`
B. `V^(3+)`
C. `Ti^(3+)`
D. `Mn^(3+)`

Answer

A

Explanation

`Cr^(3+)` has electronic configuration

according to CFT it has configuration as `t_(2g^3)` hence it is extremely stable in aqueous solution.