Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Hydrogen Atom · Exam: NET JUNE 2016 · Marks: 2 · Difficulty: Medium
The spatial part of an excited state $\mathrm{b}^{3} \Sigma_{\mathrm{u}}^{+}$of hydrogen molecule is proportional to $\left[1 \sigma_{\mathrm{g}}(1) \sigma_{\mathrm{u}}(2)-1 \sigma_{\mathrm{g}}(2) \sigma_{\mathrm{u}}(1)\right]$. Using LCAO-MO expansion of $1 \sigma_{\mathrm{g}}$ and $1 \sigma_{\mathrm{u}}$ in terms of 1s-atomic orbitals, one can infer that this wavefunction has
(a)only ionic parts
(b)only covalent parts
(c)both ionic and covalent parts
(d)neither ionic nor covalent parts
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.