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Chemical Bonding — Chemistry STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding1 Mark
MCQ
What is the bond onder of $O _2$ molecule?
  • ✓
    2,0
  • B
    1.5
  • C
    1
  • D
    3.5
✓

Answer

Correct option: A.
2,0
(a) : The electronic configuration of $O _2$ is $\sigma 1 s^2 \sigma^* 1 s^2 \sigma 2 s^2 \sigma^2 2 s^2 \sigma 2 p_z^2 \pi 2 p_x^2=\pi 2 p_y^2 \pi^* 2 p_x^1=\pi^* 2 p_y^1$ Bond order $=\frac{10-6}{2}=2$

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