The colour and magnetic nature of mangante ion `(MnO_(4)^(2-))` is

Options

A. green, paramagnetic
B. purple, diamagnetic
C. green, diamagnetic
D. pruple, paramagnetic

Answer

A

Explanation

Oxidation state of Mn in `MnO_(4)^(2-)` is +6.
`Mn (+6) 1s^(2) 2s^(2)2p^(6)3s^(2)3p^(6)4s^(1)`
Hence , manganate ion `(MnO_(4)^(2-))` is paramagnetic due to presence of unpaired electron. Also, `MnO_(4)^(2-)` is green in colour.