Question

Paramagnetic character is observed in
(2) 02
(1) O
(3) Na - liq. NH3
(4) All of these​

Answer 1

Answer:

Cr−[Ar] 4s

1

3d

5

Fe−[Ar] 4s

2

3d

6

Zn−[Ar] 4s

2

3d

10

Mn−[Ar] 4s

2

3d

5

The number of unpaired electrons present in Cr, Fe, Zn and Mn are 6, 4, 0 and 5 respectively.

Greater is the number of unpaired electrons, greater is the paramagnetic character.

Order of paramagnetic character among following elements are Cr>Fe>Zn and Cr>Mn>Fe