SATHEE: Chemical Bonding And Molecular Structure Question 464

Chemical Bonding And Molecular Structure Question 464

Question: Which one of the following molecules is paramagnetic-

Options:

A) $N_{2}$

B) NO

C) CO

D) $O_{3}$

Show Answer

Answer:

Correct Answer: B

Solution:

The molecular orbital configuration of the molecules given is Total no. of electrons in $N O = 7 (N) + 8 (O)$

$= 15$
Hence E.C. of NO $= K K σ {(2 s)}^{2} σ * {(2 s)}^{2} σ {(2 p_{z})}^{2}$

$π {(2 p_{x})}^{2} = π {(2 p_{y})}^{2} π * {(2 p_{x})}^{1} = π {(2 p_{y})}^{0}$ Due to presence of one unpaired electron NO is paramagnetic. Except NO all are diamagnetic due to absence of unpaired electrons.

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Chemical Bonding And Molecular Structure Question 464

Question: Which one of the following molecules is paramagnetic-

Options:

Answer:

Solution:

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