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Dipole Moment

Molecules/ion...

Question

Molecules/ions and their magnetic properties are given below
Molecule/Ion Magnetic property
(i) $C_{6} H_{6}$ (1) Antiferromagnetic
(ii) $C r O_{2}$ (2) Ferrimagnetic
(iii) $M n O$ (3) Ferromagnetic
(iv) ${F e}_{3} O_{4}$ (4) Paramagnetic
(v) ${F e}^{3 +}$ (5) Diamagnetic
The correctly matched pairs in the above is:

i - 5

i i - 3

i i i - 2

i v - 1

v - 4

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i - 3

i i - 5

i i i - 1

i v - 4

v - 2

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i - 5

i i - 3

i i i - 1

i v - 2

v - 4

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i - 5

i i - 3

i i i - 1

i v - 4

v - 2

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i - 4

i i - 5

i i i - 1

i v - 2

v - 3

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Solution

The correct option is E $i - 5$ $i i - 3$ $i i i - 1$ $i v - 2$ $v - 4$
$C_{6} H_{6}$ is a diamagnetic substance, as it is weakly repelled by a magnetic field.
$C r O_{2}$ is a ferromagnetic substance, which is attracted very strongly by a magnetic field.
$M n O$ is an antiferromagnetic substance as its domains cancel out each other's magnetic moment.
${F e}_{3} O_{4}$ (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.
${F e}^{3 +} (3 d^{5})$ is paramagnetic because of the presence of unpaired electrons.
Thus, the correct match is
$i - 5, i i - 3, i i i - 1, i v - 2, v - 4$

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Molecule/Ion	Magnetic property
(i) $C_{6} H_{6}$	(1) Antiferromagnetic
(ii) $C r O_{2}$	(2) Ferrimagnetic
(iii) $M n O$	(3) Ferromagnetic
(iv) ${F e}_{3} O_{4}$	(4) Paramagnetic
(v) ${F e}^{3 +}$	(5) Diamagnetic

Molecules/ions and their magnetic properties are given belowMolecule/IonMagnetic property(i) C6H6(1) Antiferromagnetic(ii) CrO2(2) Ferrimagnetic(iii) MnO(3) Ferromagnetic(iv) Fe3O4(4) Paramagnetic(v) Fe3+(5) DiamagneticThe correctly matched pairs in the above is: