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Paramagnetism...

Question

Paramagnetism is exhibited by the molecules which:

A

are not attracted by magnetic field

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B

contains only paired electrons

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C

carries a positive charge

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D

contains unpaired electrons

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Solution

The correct option is D contains unpaired electrons
Paramagnetism is when certain materials are weakly attracted by the externally applied magnetic field.
Magnetic moment = $\sqrt{n (n + 2)}$ B.M
where n - number of unpaired electrons
Thus, paramagnetism is exhibited by the molecules which have unpaired electrons

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Similar questions

The substances which contain species with unpaired electrons in their orbitals behave as paramagnetic substances. Such substances are weakly attracted by the magnetic field. The paramagnetism is expressed in terms of magnetic moment. The magnetic moment is related to the number of unpaired electrons according to the following relation:
Magnetic moment,

μ = \sqrt{n (n + 2)} B M

n =

number of unpaired electrons.

B M

stands for Bohr magneton, a unit of magnetic moment.

1 B M = \frac{e h}{4 π m c} = 9.27 \times 10^{- 24} {A m}^{2}

J T^{- 1}

Which of the following ions are diamagnetic?

The substances which contain species with unpaired electrons in
their orbitals behave as paramagnetic substances. Such substances
are weakly attracted by the magnetic field. The paramagnetism is
expressed in terms of magnetic moment. The magnetic moment is
related to the number of unpaired electrons according to the
following relation:
Magnetic moment,

μ = \sqrt{n (n + 2)} B M

n =

number of unpaired electrons.

B M

stands for Bohr magneton, a unit of magnetic moment.

1 B M = \frac{e h}{4 π m c} = 9.27 \times 10^{- 24} {A m}^{2}

J T^{- 1}

In which of these options do both constituents of the pair have the same magnetic moment?

The substances which contain species with unpaired electrons in their orbitals behave as paramagnetic substances. Such substances are weakly attracted by the magnetic field. The paramagnetism is expressed in terms of the magnetic moment. The magnetic moment is related to the number of unpaired electrons according to the following relation:

Magnetic moment,

μ = \sqrt{n (n + 2)} B M

n =

number of unpaired electrons.

B M

stands for Bohr magneton, a unit of the magnetic moment.

1 B M = \frac{e h}{4 π m c} = 9.27 \times 10^{- 24} {A m}^{2}

J T^{- 1}

d

-block element has a magnetic moment

5.92 B M

. Select the ion among the following

Q. Paramagnetism is exhibited by the molecules which:

Q. Assertion (A):

N O_{2}

is paramagnetic molecule, whereas

N_{2} O_{4}

is diamagnetic
Reason (R): Molecules with unpaired electrons are Diamagnetic.

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Features of MOT

Standard XII Chemistry

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