Q38 / 180 · AIIMS 2017 · Chemistry

Assertion: Both $\pi\left(2 p_x\right)$ and $\pi^*\left(2 p_x\right)$ MO's have one nodal plane each. Reason: All MO's formed by side way overlapping of $2 p$-orbitals have one nodal plane.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    If assertion is true but reason is false.
  • Correct answer
    D
    If both assertion and reason are false.

Solution

$\pi\left(2 p_x\right)$ has one nodal plane whereas $\pi^*\left(2 p_x\right)$ has two nodal planes.

Hence, the correct answer is option: 'D'.

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