ABC26PH1284 · Quantum Chemistry

Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Hydrogen Atom · Exam: NET JUNE 2016 · Marks: 2 · Difficulty: Medium

In simple molecular orbital theory of hydrogen molecule, bonding $\sigma_{\mathrm{g}}$ and anti-bonding $\sigma_{\mathrm{u}}$ molecular orbitals are constructed as linear combinations of atomic orbitals of two hydrogen atoms. The spatial part of a purely covalent singlet wave function is obtained by
(a)$\sigma_{\mathrm{g}}^{2}+\sigma_{\mathrm{u}}^{2}$
(b)$\sigma_{\mathrm{g}}^{2}$
(c)$\sigma_{\mathrm{g}}^{2}-\sigma_{\mathrm{u}}^{2}$
(d)$\sigma_{\mathrm{g}}^{2}+\frac{1}{2} \sigma_{\mathrm{u}}^{2}$
Answer
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Explanation
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