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Molecules/ions and their magnetic proper...

Molecules/ions and their magnetic properties are given below
`{:(,"Molecule/Ion",,"Magnetic property"),((i),C_(6)H_(6),(1),"Antiferromagnetic"),((ii),CrO_(2),(2),"Ferrimagnetic"),((iii),MnO,(3),"Ferromagnetic"),((iv),Fe_(3)O_(4),(4),"Paramagnetic"),((v),Fe^(3+),(5),"Diamagnetic"):}`
The correctly matched pairs in the above is

A

i-5 ii-3 iii-2 iv-1 v-4

B

i-3 ii-5 iii-1 iv-4 v-2

C

i-5 ii-3 iii-1 iv-2 v-4

D

i-5 ii-3 iii-1 iv-4 v-2

Text Solution

Verified by Experts

The correct Answer is:
C
`C_(6)H_(6)` is a diamagnetic substance, as it is weakly repelled by a magnetic field.
`CrO_(2)` is a ferromagnetic substance, which is attracted very strongly by a magnetic field.
MnO is an antiferromagnetic substance as its domains cancel out each other.s magnetic moment.
`Fe_(3)O_(4)` (magnetite) is a ferrimagnetic substance because in it the magnetic moments of the domains are aligned in parallel and anti-parallel direction in unequal number.
`Fe^(3+)(3d^(5))` is paramagnetic because of the presence of unpaired electrons.
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