SATHEE: Chemical Bonding and Molecular Structure

Chemical Bonding and Molecular Structure - Result Question 89

####91. Which of the following is paramagnetic?

(a) $O_{2}$

(b) $N_{2}$

(d) $L i_{2}$

[NEET Odisha 2019]

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Solution:

(a) Molecular orbital configuration of $O_{2}$ is given as :

$\begin{aligned} O_{2} (16 e^{-}) : σ 1 s^{2} σ * 1 s^{2} σ 2 s^{2} σ * 2 s^{2} σ 2 p_{z}^{2} \\ π 2 p_{x}^{2} = π 2 p_{y}^{2} π * 2 p_{x}^{1} = π * 2 p_{y}^{1} \end{aligned}$

So, in $O_{2}$ molecule, there are two (2) unpaired electrons, so, it is a “paramagnetic” substance in nature.

Chemical Bonding and Molecular Structure - Result Question 89

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Chemical Bonding and Molecular Structure - Result Question 89

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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