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Chemical Bonding and Molecular Structure question

2023 · Q92
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Chemical Bonding and Molecular Structure question

2023 · Q92

NEETChemistryChemical Bonding and Molecular StructureMCQ+4 / −1

The correct order of energies of molecular orbitals of N2\mathrm{N}_{2}N2​ molecule, is

  1. A
    σ1 s<σ∗1 s<σ2 s<σ∗2 s<σ2pz<(π2px=π2py)<(π∗2px=π∗2py)<σ∗2pz\sigma 1 \mathrm{~s} < \sigma^{*} 1 \mathrm{~s} < \sigma 2 \mathrm{~s} < \sigma^{*} 2 \mathrm{~s} < \sigma 2 \mathrm{p}_{\mathrm{z}} < \left(\pi 2 \mathrm{p}_{\mathrm{x}}=\pi 2 \mathrm{p}_{\mathrm{y}}\right) < \left(\pi^{*} 2 \mathrm{p}_{\mathrm{x}}=\pi^{*} 2 \mathrm{p}_{\mathrm{y}}\right) < \sigma^{*} 2 \mathrm{p}_{\mathrm{z}}σ1 s<σ∗1 s<σ2 s<σ∗2 s<σ2pz​<(π2px​=π2py​)<(π∗2px​=π∗2py​)<σ∗2pz​
  2. B
    σ1 s<σ∗1 s<σ2 s<σ∗2 s<σ2pz<σ∗2pz<(π2px=π2py)<(π∗2px=π∗2py)\sigma 1 \mathrm{~s} <\sigma^{*} 1 \mathrm{~s} <\sigma 2 \mathrm{~s} < \sigma^{*} 2 \mathrm{~s} < \sigma 2 \mathrm{p}_{\mathrm{z}} < \sigma^{*} 2 \mathrm{p}_{\mathrm{z}} < \left(\pi 2 \mathrm{p}_{\mathrm{x}}=\pi 2 \mathrm{p}_{\mathrm{y}}\right) < \left(\pi^{*} 2 \mathrm{p}_{\mathrm{x}}=\pi^{*} 2 \mathrm{p}_{\mathrm{y}}\right)σ1 s<σ∗1 s<σ2 s<σ∗2 s<σ2pz​<σ∗2pz​<(π2px​=π2py​)<(π∗2px​=π∗2py​)
  3. C
    σ1 s<σ∗1 s<σ2 s<σ∗2 s<(π2px=π2py)<(π∗2px=π∗2py)<σ2pz<σ∗2pz\sigma 1 \mathrm{~s} <\sigma^{*} 1 \mathrm{~s} <\sigma 2 \mathrm{~s} < \sigma^{*} 2 \mathrm{~s} < \left(\pi 2 \mathrm{p}_{\mathrm{x}}=\pi 2 \mathrm{p}_{\mathrm{y}}\right) < \left(\pi^{*} 2 \mathrm{p}_{\mathrm{x}}=\pi^{*} 2 \mathrm{p}_{\mathrm{y}}\right) < \sigma 2 \mathrm{p}_{\mathrm{z}} < \sigma^{*} 2 \mathrm{p}_{\mathrm{z}}σ1 s<σ∗1 s<σ2 s<σ∗2 s<(π2px​=π2py​)<(π∗2px​=π∗2py​)<σ2pz​<σ∗2pz​
  4. D
    σ1 s<σ∗1 s<σ2 s<σ∗2 s<(π2px=π2py)<σ2pz<(π∗2px=π∗2py)<σ∗2pz\sigma 1 \mathrm{~s} <\sigma^{*} 1 \mathrm{~s} <\sigma 2 \mathrm{~s} < \sigma^{*} 2 \mathrm{~s} < \left(\pi 2 \mathrm{p}_{\mathrm{x}}=\pi 2 \mathrm{p}_{\mathrm{y}}\right) < \sigma 2 \mathrm{p}_{\mathrm{z}} < \left(\pi^{*} 2 \mathrm{p}_{\mathrm{x}}=\pi^{*} 2 \mathrm{p}_{\mathrm{y}}\right) < \sigma^{*} 2 \mathrm{p}_{\mathrm{z}}σ1 s<σ∗1 s<σ2 s<σ∗2 s<(π2px​=π2py​)<σ2pz​<(π∗2px​=π∗2py​)<σ∗2pz​
View written solutionFree

Correct answer: D

Molecular orbital (energy) diagram / sequence of N$_2$

NEET 2023 Chemistry - Chemical Bonding and Molecular Structure Question 17 English Explanation
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