Which of the following species is not paramagnetic ?

  • Option 1)

    O2

  • Option 2)

    B2

  • Option 3)

    NO

  • Option 4)

    CO

 

Answers (1)

As we learnt in

Magnetic character of oxygen family -

Oxygen is paramagnetic while others are not 

-

 

NO: one unpaired electron is present in \pi molecular orbit 

CO: no unpaired electron present

O_{2}: Two unpaired electrons are present in \pi ^{4} molecular orbit

B ^{2}: Two unpaired electrons are present in \pi ^{4} molecular orbit

 

 

 


Option 1)

O2

This option is incorrect.

Option 2)

B2

This option is incorrect.

Option 3)

NO

This option is incorrect.

Option 4)

CO

This option is correct.

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