MCQ
Stable form of $C$ may be represented by the formula :
  • A
    $\ce{C} $
  • $\ce{C_2}$
  • C
    $\ce{C_3}$
  • D
    $\ce{C_4}$

Answer

Correct option: B.
$\ce{C_2}$
$\text{KK}\big[\sigma\ 2\text{s}\big]^{2}\big[\sigma^{\star}{\ 2\text{s}}\big]^{2}\big[\pi\ 2\text{p}_{\text{x}}\big]^{2}\big[\pi\ 2\text{p}_{\text{y}}\big]^{2}$
Bond order $=\frac{1}{2}(6-2)=2$

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