Identify the correct increasing order of energies of molecular orbitals for $\mathrm{F}_2$ molecule.

Identify the correct increasing order of energies of molecular orbitals for $\mathrm{F}_2$ molecule.
  1. ${\sigma}^* 1 \mathrm{~s}<\sigma 1 \mathrm{~s}<{ }^* 2 \mathrm{~s}<\sigma 2 \mathrm{~s}$
  2. \(\sigma 1 \mathrm{~s} < \sigma 1 \mathrm{~s} < \sigma 2 \mathrm{~s} < \sigma 2 \mathrm{~s}\)
  3. $\sigma 1 \mathrm{~s}<\sigma 2 \mathrm{~s}<{ }^* \sigma 1 \mathrm{~s}<{ }^* \sigma 2 \mathrm{~s}$
  4. $\sigma 1 \mathrm{~s}<\sigma 1 \mathrm{~s}<\sigma 2 \mathrm{~s}<\sigma 2 \mathrm{~s}$

Solution

\(\sigma 1 \mathrm{~s} < \sigma 1 \mathrm{~s} < \sigma 2 \mathrm{~s} < \sigma 2 \mathrm{~s}\) is the increasing order of energies of molecular orbitals for $\mathrm{F}_2$ molecule.

Asked in: MHT CET 2022 (05 Aug Shift 1)

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