MCQ
$x$ and $y$ respectively are


- A$x = 0.2\,\%,\,\,y = 99.95\,\%$
- ✓$x =99.9\,\%,\,\,y = 0.2\,\%$
- C$x = 0.2\,\%,\,\,y = 0.2\,\%$
- D$x = 99.9\,\%,\,\,y = 99.9\,\%$

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$O _{2}^{+}, O _{2}, O _{2}^{-}, O _{2}^{2-}$
For increasing bond order the correct option is ..... .