Which of the following does not represents the correct order of the property indicated ?

Options

A. `Sc^(3+) gt Cr^(3+) gt Fe^(3+) gt Mn^(3+)` ionic radii
B. `Sc lt Ti lt Cr lt` Mn Density
C. `Mn^(2+) gt Ni^(2+) lt Co^(2+) lt Fe^(2+)` ionic radii
D. `Feo lt Cao lt Mno lt CuO` Basic nature

Answer

A

Explanation

`Sc^(3+) gt Cr^(3+) gt Fe^(3+) gt Mn^(3+)` the correct order is
`Cr^(+3) gt Mn^(+3) gt Fe^(+3) gt Sc^(+3)`.