The simplest ground-state VB wave function of a diatomic molecule like HCl is written as ψ=ψH(1 s, 1) ψCl (3… · ABC26PH0161

Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Quantum Chemistry – General · Exam: CSIR NET 2015 · Marks: 2 · Difficulty: Hard

The simplest ground-state VB wave function of a diatomic molecule like HCl is written as $\psi=\psi_{H}(1 s, 1) \psi_{Cl}\left(3 p_{z}, 2\right)+B$ where $B$ stands for
(a)$\psi_{H}\left(3 p_{z}, 2\right) \psi_{Cl}(1 s, 1)$
(b)$\psi_{H}(1 s, 2) \psi_{Cl}\left(3 p_{z}, 1\right)$
(c)$\psi_{Cl}(1 s, 2) \psi_{Cl}\left(3 p_{z}, 1\right)$
(d)$\psi_{Cl}(1 s, 2) \psi_{H}\left(3 p_{z}, 1\right)$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
The Heitler–London covalent function is the symmetrised pair ψ_H(1s,1)ψ_Cl(3p_z,2) + ψ_H(1s,2)ψ_Cl(3p_z,1); B is the exchange term (b).

Study loop for Quantum Chemistry

1. Practise the PYQsPrevious-year questions, with answers

· Browse this chapter in the app