Which of the following is/are correctly matched ?

Options

A. `[Co(Pme_(3))_(4)]-sp^(3)` and one unpaired electron.
B. `[Ni(en)_(3)](NO_(2))_(2)-sp^(3)d^(2)` and two unpaired electrons.
C. `[V(NH_(3))_(6)]Cl_(3)-sp^(3)d^(2)` and two unpaired electrons.
D. `[Mn(NO^(+))_(3)(CO)-sp^(3)` and diamagnetic.

Answer

A, B, D

Explanation

(a) `d^(9)` config. `Implies` 1 u.p. electron
(c ) `[overset(+3)V(NH_(3))_(6)]Cl_(3) impliesd^(2)` config., ` d^(2)sp^(3)`, 2u.p. elecctron