MCQEasyJEE Main 2023 · 30 January, Shift 2Orbitals & Shapes

Chemistry Question from JEE Main 2023 · 30 January, Shift 2

The wave function (Ψ\Psi) of 2s2s is given by

Ψ2s=122π(1a0)1/2(2ra0)er/2a0\Psi_{2s} = \frac{1}{2\sqrt{2\pi}} \left( \frac{1}{a_0} \right)^{1/2} \left( 2 - \frac{r}{a_0} \right) e^{-r/2a_0}

At r=r0r = r_0, a radial node is formed. Thus, r0r_0 in terms of a0a_0 is:

  • A

    r0=a0r_0 = a_0

  • B

    r0=4a0r_0 = 4a_0

  • C

    r0=a02r_0 = \frac{a_0}{2}

  • D

    r0=2a0r_0 = 2a_0

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