The correct order of energies of molecular orbitals of molecules is [2023]

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Q.
The correct order of energies of molecular orbitals of $N_{2}$ molecules is [2023]

1 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < σ 2 p_{z} < σ^{} 2 p_{z} < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{*} 2 p_{y})$

2 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ 2 p_{z} < σ^{*} 2 p_{z}$

3 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < σ 2 p_{z} < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

4 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < σ 2 p_{z} < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

Ans.
(3)

For molecules ${Li}_{2}, {Be}_{2}, B_{2}, C_{2}$ and $N_{2}$ , the order of energies of various molecular orbitals is

$σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < σ 2 p_{z} < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

Solution

Q.
The correct order of energies of molecular orbitals of $N_{2}$ molecules is [2023]

1 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < σ 2 p_{z} < σ^{} 2 p_{z} < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{*} 2 p_{y})$

2 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ 2 p_{z} < σ^{*} 2 p_{z}$

3 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < σ 2 p_{z} < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

4 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < σ 2 p_{z} < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

Ans.
(3)

For molecules ${Li}_{2}, {Be}_{2}, B_{2}, C_{2}$ and $N_{2}$ , the order of energies of various molecular orbitals is

$σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < σ 2 p_{z} < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

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Solution

Q. The correct order of energies of molecular orbitals of N2 molecules is [2023]

1 σ1s<σ*1s<σ2s<σ*2s<σ2pz<σ*2pz<(π2px=π2py)<(π*2px=π*2py)

2 σ1s<σ*1s<σ2s<σ*2s<(π2px=π2py)<(π*2px=π*2py)<σ2pz<σ*2pz

3 σ1s<σ*1s<σ2s<σ*2s<(π2px=π2py)<σ2pz<(π*2px=π*2py)<σ*2pz

4 σ1s<σ*1s<σ2s<σ*2s<σ2pz<(π2px=π2py)<(π*2px=π*2py)<σ*2pz

Ans. (3) For molecules Li2,Be2,B2,C2 and N2, the order of energies of various molecular orbitals is σ1s<σ*1s<σ2s<σ*2s<(π2px=π2py)<σ2pz<(π*2px=π*2py)<σ*2pz

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Q.
The correct order of energies of molecular orbitals of $N_{2}$ molecules is [2023]

1 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < σ 2 p_{z} < σ^{} 2 p_{z} < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{*} 2 p_{y})$

2 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ 2 p_{z} < σ^{*} 2 p_{z}$

3 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < σ 2 p_{z} < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

4 $σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < σ 2 p_{z} < (π 2 p_{x} = π 2 p_{y}) < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$

Ans.
(3)

For molecules ${Li}_{2}, {Be}_{2}, B_{2}, C_{2}$ and $N_{2}$ , the order of energies of various molecular orbitals is

$σ 1 s < σ^{} 1 s < σ 2 s < σ^{} 2 s < (π 2 p_{x} = π 2 p_{y}) < σ 2 p_{z} < (π^{} 2 p_{x} = π^{} 2 p_{y}) < σ^{*} 2 p_{z}$