Amongst and
and are diamagnetic and is paramagnetic.
and are diamagnetic and is paramagnetic.
and are diamagnetic and is paramagnetic.
is diamagnetic and and are paramagnetic.
As we learnt in
Diamagnetism -
When substance unaffected by a magnetic field or the central metal atom doesn't have unpaired e- called Diamagnetic substance or character.
- wherein
No unpaired e-
Paramagnetism -
When a substance is attracted by a magnetic field or have unpaired e- called paramagnetic substance.
- wherein
5 unpaired e-
Lets take each species individually
Ni (CO)4 : Ni config: 3d10 and 4s0
CO is a strong ligand
CN- is a strong Ligand
Cl- is a weak Ligand
As we can see, only has unpaired electrons.
Option 1)
and are diamagnetic and is paramagnetic.
This answer is incorrect
Option 2)
and are diamagnetic and is paramagnetic.
This answer is incorrect
Option 3)
and are diamagnetic and is paramagnetic.
This answer is correct
Option 4)
is diamagnetic and and are paramagnetic.
This answer is incorrect