The correct of decreasing second ionisation enthalpy of `Ti(22),V(23),Cr(24)` and `Mn(25)` is

Options

A. `V gt Mn gt Cr gt Ti`
B. `Mn gt Cr gt Ti gt V `
C. `Ti gt V gt Cr gt Mn`
D. `Cr gt Mn gt V gt Ti`

Answer

d

Explanation

`._(22)Ti : 3s^(2),4s^(2) overset(IE_(1))` to `3d^(2),4s^(1)`
`._(23)V : 3d^(3),4s^(2) overset(IE_(1))` to `3d^(3),4s^(1)`
`._(24)Cr : 3d^(5),4s^(1) overset(IE_(1))(rarr)` to `3d^(5) overset(IE_(2)from)underset(half-"filled")(rarr)` maximum
` ._(25)Mn : 3d^(5),4s^(2) overset(IE_(1)) to 3d^(5),4s^(1)`